1) when the tsunderes have their eyes closed trying to act swag

2) you know it's a fangirl since she adds the -sama

3) the waterfall tears or those weird oval ones that float under their eye

4) when the main character never gives up

5) when the kids call everyone older that them -senpai

6) when you see an old man who's a proud pervert

7) when the main character gets awesome power upgrades

8) when a side character dies

9) le blush! •////^////•

10) the shïtty cliche girls school uniform that everyone has

11) dem back stories...

12)when it's so obvious that the main character will achieve there dream

13)when the main girl is so weak

14) when the main girl beats up the main guy

15)when the the adult ladies have boobs bigger than the rest of their body

16) when pervy ness runs in the family

17) when those weird masochist that wanna be punished by a strong female character =_=

18) when they wanna dominate the world

19)the nosebleed. the eye twinkle. the closed eyes smile.

20) THE OTAKUS

(XD) 21) when a character has a fucked relationship with their brother or sister. I call it the itachi-sasuke relationship. Don't matter what anime. I call it that.