diff --git a/js/tests/happiness-manager_test.mjs b/js/tests/happiness-manager_test.mjs
index 229dd2dd2..f651cdc6b 100644
--- a/js/tests/happiness-manager_test.mjs
+++ b/js/tests/happiness-manager_test.mjs
@@ -100,52 +100,52 @@ tests.push(async ({ eq, ctx }) => {
 })
 
 tests.push(async ({ eq, ctx }) => {
-  // test when vips answer { drink: 'beer' }
-  // should create a list with 6-packs-beers and potatoes
+  // test when vips answer { drink: 'iced-tea' }
+  // should create a list with iced-tea-bottles and potatoes
   const answers = [
     { answer: 'no', drink: 'beer' },
-    ...ctx.createAnswers(1, { answer: 'yes', drink: 'beer' }),
+    ...ctx.createAnswers(1, { answer: 'yes', drink: 'iced-tea' }),
   ]
   await ctx.setAnswersIn({ dir: 'guests', answers })
 
-  const { data } = await ctx.run('guests', 'happy-beer-list.json')
-  return eq(data, { potatoes: 1, '6-packs-beers': 1 })
+  const { data } = await ctx.run('guests', 'happy-iced-tea-list.json')
+  return eq(data, { potatoes: 1, 'iced-tea-bottles': 1 })
 })
 
 tests.push(async ({ eq, ctx }) => {
-  // test when vips answer { drink: 'beer' }
-  // should create a list with 6-packs-beers and potatoes
+  // test when vips answer { drink: 'iced-tea' }
+  // should create a list with iced-tea-bottles and potatoes
   const answers = [
-    { answer: 'no', drink: 'beer' },
-    ...ctx.createAnswers(6, { answer: 'yes', drink: 'beer' }),
+    { answer: 'no', drink: 'iced-tea' },
+    ...ctx.createAnswers(6, { answer: 'yes', drink: 'iced-tea' }),
   ]
   await ctx.setAnswersIn({ dir: 'guests', answers })
 
-  const { data } = await ctx.run('guests', 'happy-beer-pack-list.json')
-  return eq(data, { potatoes: 6, '6-packs-beers': 1 })
+  const { data } = await ctx.run('guests', 'happy-iced-tea-bottles-list.json')
+  return eq(data, { potatoes: 6, 'iced-tea-bottles': 1 })
 })
 
 tests.push(async ({ eq, ctx }) => {
-  // test when vips answer { drink: 'wine' }
-  // should create a list with wine-bottles and potatoes
+  // test when vips answer { drink: 'sparkling-water' }
+  // should create a list with sparkling-water-bottles and potatoes
   const answers = [
-    ...ctx.createAnswers(3, { answer: 'no', drink: 'wine' }),
-    ...ctx.createAnswers(5, { answer: 'yes', drink: 'wine' }),
+    ...ctx.createAnswers(3, { answer: 'no', drink: 'sparkling-water' }),
+    ...ctx.createAnswers(5, { answer: 'yes', drink: 'sparkling-water' }),
   ]
   await ctx.setAnswersIn({ dir: 'guests', answers })
 
-  const { data } = await ctx.run('guests', 'happy-wine-list.json')
-  return eq(data, { potatoes: 5, 'wine-bottles': 2 })
+  const { data } = await ctx.run('guests', 'happy-sparkling-water-list.json')
+  return eq(data, { potatoes: 5, 'sparkling-water-bottles': 2 })
 })
 
 tests.push(async ({ eq, ctx }) => {
-  // test when vips answer { drink: 'wine' }
-  // should create a list with wine-bottles and potatoes
-  const answers = ctx.createAnswers(8, { answer: 'yes', drink: 'wine' })
+  // test when vips answer { drink: 'sparkling-water' }
+  // should create a list with sparkling-water-bottles and potatoes
+  const answers = ctx.createAnswers(8, { answer: 'yes', drink: 'sparkling-water' })
   await ctx.setAnswersIn({ dir: 'guests', answers })
 
-  const { data } = await ctx.run('guests', 'happy-wine-bottle-list.json')
-  return eq(data, { potatoes: 8, 'wine-bottles': 2 })
+  const { data } = await ctx.run('guests', 'happy-sparkling-water-bottles-list.json')
+  return eq(data, { potatoes: 8, 'sparkling-water-bottles': 2 })
 })
 
 tests.push(async ({ eq, ctx }) => {
@@ -365,12 +365,12 @@ tests.push(async ({ eq, ctx }) => {
     }),
     ...ctx.createAnswers(6, { answer: 'yes', food: 'vegan', drink: 'water' }),
     ...ctx.createAnswers(2, { answer: 'yes', food: 'veggie', drink: 'water' }),
-    ...ctx.createAnswers(3, { answer: 'yes', food: 'veggie', drink: 'beer' }),
-    ...ctx.createAnswers(11, { answer: 'yes', food: 'fish', drink: 'wine' }),
+    ...ctx.createAnswers(3, { answer: 'yes', food: 'veggie', drink: 'iced-tea' }),
+    ...ctx.createAnswers(11, { answer: 'yes', food: 'fish', drink: 'sparkling-water' }),
     ...ctx.createAnswers(4, {
       answer: 'yes',
       food: 'everything',
-      drink: 'beer',
+      drink: 'iced-tea',
     }),
   ]
   await ctx.setAnswersIn({ dir: 'guests', answers })
@@ -388,8 +388,8 @@ tests.push(async ({ eq, ctx }) => {
     sardines: 11,
     burgers: 2,
     kebabs: 4,
-    '6-packs-beers': 2,
-    'wine-bottles': 3,
+    'iced-tea-bottles': 2,
+    'sparkling-water-bottles': 3,
     'water-bottles': 2,
     'soft-bottles': 1,
   })
diff --git a/js/tests/level-up.json b/js/tests/level-up.json
index cb5618cc9..636b271f1 100644
--- a/js/tests/level-up.json
+++ b/js/tests/level-up.json
@@ -8,16 +8,16 @@
     "code": "equal(shaker.length, 3)"
   },
   {
-    "description": "shaker can make a cocktail.",
-    "code": "equal(shaker(1, 'strawberry', true), '1 strawberry cocktail')"
+    "description": "shaker can make a skinny milkshake.",
+    "code": "equal(shaker(1, 'strawberry', true), '1 skinny strawberry milkshake')"
   },
   {
     "description": "shaker can make a milkshake.",
     "code": "equal(shaker(1, 'strawberry', false), '1 strawberry milkshake')"
   },
   {
-    "description": "shaker can make multiple cocktails.",
-    "code": "equal(shaker(7, 'banana', true), '7 banana cocktails')"
+    "description": "shaker can make multiple skinny milkshakes.",
+    "code": "equal(shaker(7, 'banana', true), '7 skinny banana milkshakes')"
   },
   {
     "description": "shaker can make multiple milkshakes.",
@@ -25,6 +25,6 @@
   },
   {
     "description": "shaker is shakin it right.",
-    "code": "equal(shaker(1, 'vanilla', true), '1 vanilla cocktail')\nequal(shaker(1, 'mango', true), '1 mango cocktail')\nequal(shaker(2, 'banana', true), '2 banana cocktails')\nequal(shaker(2, 'chocolate', false), '2 chocolate milkshakes')\nequal(shaker(2, 'vanilla', false), '2 vanilla milkshakes')\nequal(shaker(2, 'strawberry', false), '2 strawberry milkshakes')"
+    "code": "equal(shaker(1, 'vanilla', true), '1 skinny vanilla milkshake')\nequal(shaker(1, 'mango', true), '1 skinny mango milkshake')\nequal(shaker(2, 'banana', true), '2 skinny banana milkshakes')\nequal(shaker(2, 'chocolate', false), '2 chocolate milkshakes')\nequal(shaker(2, 'vanilla', false), '2 vanilla milkshakes')\nequal(shaker(2, 'strawberry', false), '2 strawberry milkshakes')"
   }
 ]
\ No newline at end of file
diff --git a/subjects/happiness-manager/README.md b/subjects/happiness-manager/README.md
index b50959a66..502a65fb3 100644
--- a/subjects/happiness-manager/README.md
+++ b/subjects/happiness-manager/README.md
@@ -7,21 +7,21 @@
 As you're smart, you asked every guest of the party to precise in their answer
 the kind of drink they would enjoy and the kind of food they would die for.
 
-Create a `happiness-manager.mjs` script that sort, who wants to drink what and
+Create a `happiness-manager.mjs` script that sorts, who wants to drink what and
 who wants to eat what and integrate that in your barbecue's shopping list!
 
-> note that you must only consider **vips** guests, those that answerd `'yes'`
+> note that you must only consider as **VIP** guests, those that answered `'yes'`
 
 The script must:
 
 - Take a directory as first argument (the `guest` directory)
 - Take a file `.json` as second argument:
-  - If the file already exists, it will add the informations to it. If some elements already exist in the original file, it will be replaced by new values.
+  - If the file already exists, it will add the information to it. If some elements already exist in the original file, it will be replaced by new values.
   - If it doesn't, the script must handle the creation of the file.
-- Handle case when no one answered yes to the invitation:
-  - `No one is coming.` has to appear in console.
+- Handle the case when no one answered yes to the invitation:
+  - `No one is coming.` has to appear in the console.
   - No file is updated/created.
-- Handle cases when answers contains no "food" information, or no "drink"
+- Handle cases when answers contain no "food" information, or no "drink"
   information
 - Handle cases when no one has chosen a category (for example: no one chose to
   drink softs). This category should not appear in the final list.
@@ -29,24 +29,24 @@ The script must:
 You have to handle the info like this:
 
 - Drinks:
-  - Beers: 1 pack / 6 vips (rounded up). Expected key: `6-packs-beers`.
-  - Water, wine, softs: 1 bottle / 4 vips in each category (rounded up).
-    Expected keys: `wine-bottles`, `water-bottles`, `soft-bottles`.
+  - Iced tea: 1 pack / 6 VIPs (rounded up). Expected key: `iced-tea-bottles`.
+  - Water, sparkling water, softs: 1 bottle / 4 VIPs in each category (rounded up).
+    Expected keys: `sparkling-water-bottles`, `water-bottles`, `soft-bottles`.
 - Food:
   - Veggies and vegans: 1 eggplant, 1 courgette, 3 mushrooms and 1 hummus / 3
-    vips in these categories put together. Expected keys: `eggplants`,
+    VIPs in these categories put together. Expected keys: `eggplants`,
     `mushrooms`, `hummus`, `courgettes`.
   - Carnivores: 1 burger per person. Expected key: `burgers`.
   - Fish lovers: 1 sardine per person. Expected key: `sardines`.
   - Omnivores: 1 chicken+shrimps+pepper kebab / person. Expected key: `kebabs`.
-  - Bonus: you'll add 1 potatoe per person (all categories put together).
+  - Bonus: you'll add 1 potato per person (all categories put together).
     Expected key: `potatoes`.
 
-The infos have to be formated like this in the `.json` file:
+The info has to be formated like this in the `.json` file:
 
 ```js
 {
-  "key": 1 // according to actual number associated to the elem
+  "key": 1 // according to actual number associated to the element
 }
 ```
 
diff --git a/subjects/level-up/README.md b/subjects/level-up/README.md
index 1ff794c00..d75c1d1ff 100644
--- a/subjects/level-up/README.md
+++ b/subjects/level-up/README.md
@@ -27,24 +27,24 @@ the string `happy` or not. The possibilities are becoming limitless...
 ### Instructions
 
 As Rick's robot, you are continuing your training to add yourself new ... skills
-(I could have said funtions). You want now to become a robot bartender.
+(I could have said functions). You want now to become a robot barista.
 
 Define the function `shaker` which will take as arguments:
 
 - `quantity`, which will be variable of type `Number`
 - `fruit`, which will be a `String`
-- `alcohol`, which will be a `Boolean`
+- `diet`, which will be a `Boolean`
 
 `shaker` must return a `String`. Look at the examples below to understand how
 `shaker` must mix its ingredients:
 
 ```js
 console.log(shaker(1, 'strawberry', true))
-//'1 strawberry cocktail'
+//'1 skinny strawberry milkshake'
 console.log(shaker(2, 'chocolate', false))
 //'2 chocolate milkshakes'
 console.log(shaker(2, 'strawberry', true))
-//'2 strawberry cocktails'
+//'2 skinny strawberry milkshakes'
 console.log(shaker(1, 'chocolate', false))
 //'1 chocolate milkshake'
 ```