Ohh, this sounds fun. I want in:
*Has to have open doors. Seriously, I get really annoyed if it's shut(beside the front door, ofc).
*Corrects every single typo I come across, mine or not, it has to be corrected! X3
*If a place is crowded and I'm alone(no friends) I talk with/to myself. I've no idea why.
*I giggle and thank my Tamagotchi once it dies. It's my way to say goodbye. >_>
*I can't stand the sight of cash. I keep everything in my credit card, and rarely, close to never, withdraw any.
*I let my tongue slip a lot. Shame on me.
There's a whole lot more, thought, I can't think of any more at the moment.