Aside from the mild OCD that I share with every single member of the Escapist (perhaps it's some sort of subliminal requirement to join the Escapist) and the nail biting (hmm, this too), I'd say I fidget too much. Everything around me I will fidget with. Without realising it I'll take pens apart and break up lollypop sticks and make patterns with them. I once did a mock interview in college (trying to teach engineering students social skills) and the woman who was trying to help told me to just sit on my hands.