This is going to be fun.
1) Every time I'm going for what might be referred to as a "number 2", I must cover the toilet seat in tissue paper before sitting down, otherwise I just can't... "Make".
2) I like walking in the rain.
3) I bite the inside of my cheek when I'm typing/writing.
4) My spine tingles upon me hearing/seeing/being aware of sticky tape being removed from a surface.
5) I dislike it when my bedroom is too neat.
6) I can, and regularly do, crack my knuckles, wrists, elbows, shoulders, back, neck, jaw, knees, ankles and toes.
7) After meeting someone once, I can remember their name, where I met them, the date, and an amusing thing that happened.
8) I remember the page number of the book that I'm on (currently page 82 of "A Feast for Crows")
9) I never get a hangover.
10) When I sit down to program, I don't leave until I'm finished. (I had an assignment due for college once. I was four hours into it, and I hadn't noticed. The security guard told me to leave at 10 pm, I started at 6 pm).
11) I only ever play against AI in Real Time Strategy games. I refuse to play against other people.