Again, due to my curious nature, I shall pose this question unto thee, the residents of theOtaku.

What is the weirdest habit you have?

Here's a (personal) example: Whenever I get bored/deep in thought/reading something, I'll use my index finger to play around with my nose, usually around the right nostril area. I don't recall why I started doing it, but it just happens.

So? Any good examples, my fellow Otaku-kinsmen (and women)?