1. to play some instruments (in the case of guitar, can chop off the one on the right hand, if u play drums, both then.).
2. to be raised when holding knife, fork, cup etc, in order to look feminine.
3. to hang the key chain when the hands are occupied.
4. to wear the pinki ring.
5. to dig nose (not neccessary for people with gorilla's nostrils).
6. to type (only when you follow the fingering rules).
7. to replace the middle finger when you think raising the latter at people seems too rude of you but can't help doing it. (ask blur and lazy)
8. to look normal
if you can think of any, please add on.