1. Singing along to a song, leaving the room, and seeing if you are still in sync with it when you come back:

2. Spelling "Wednesday" "Wed-Nes-Day":
And "Beautiful" B-E-A-Utiful".

3. Writing the wrong dates on projects so you look like a better student

4. Saying "what" only to realize a second later you understood the person

5. Thinking 1990 was ten years ago:

6. Forgeting the names of everyone you just met immediately
...and hoping a friend gets introduced to them as soon as possible.

7. Cleaning your hands with the condensation from a glass of water

8. Hating books with movie poster covers

9. Throwing away the package of food, only to have to dig it out of the garbage seconds later to check the directions

10. Wiping your cellphone screen so all the smudges go in the same direction

11. Making a mistake while typing a password and deleting everything instead of just using backspace

12. Wondering how many photos of random people have you in the background

13. Despite being an adult with years of school under your belt, needing to recite the whole alphabet every time to find a letter

14. Always stopping the microwave with one second left

15. Always having to keep the line you're reading at the top of the page

16. Speaking to every baby or pet in a really high voice

17. Thinking up soundtracks to a movie that will never be made

18. Sleeping with a blanket regardless of temperature

19. Having fictional arguments in your head

20. And plugging this in wrong EVERY SINGLE TIME:

Source