I used to be the know-it-all kid in school who always had his hand up. Now I teach college and have to deal with kids like that. Karma is irritating sometimes.
I have three passions: reading, science, and music. The reading ties directly into the former-know-it-all bit, because I really enjoy knowledge for the sake of knowledge. On a given day, you can find me reading anything from history or an autobiography to a book on particle physics to a book on religion. I suppose I'm making an almost certainly quixotic attempt to become a Renaissance man. If only I didn't need to sleep...
I love science and am constantly fascinated by the continuing expansion of human knowledge. My field is physics, in which I have my M.S., and I hope to go back to graduate school to get my Ph.D., preferably in astrophysics, but I also find evolutionary biology, particle physics, and cognitive science very interesting as well.
Music is what I do when I'm not teaching or reading (or wasting time on the computer). I play guitar and piano passably well and occasionally write my own music. I also listen to it constantly, anything from Beethoven to Pink Floyd to Flogging Molly to Megadeth.