Logical and rational. This is why I've gravitated toward math/computers/science over the years. Don't get me wrong, though, I have a creative side which manifests itself in such pursuits as writing music for piano, dancing, and making jokes.
Skeptical and unconventional. I try to question the assumptions that pervade and pollute our collective and individual thoughts. After all, how can you be the best if you aren't different? Or, more importantly, the happiest? My first-person experiments in living are met with varying success, but whatever happens I am happier living my unique life of failures and successes than I would be taking the safe, societally prescribed course of action. (Examples: biking across the Mexican border, becoming a long-haul truck driver, becoming an atheist, learning to type on a Dvorak keyboard, my general awkwardness resulting from an unwillingness/inability to learn/practice arbitrary social conventions, measuring the quality of my life by my happiness rather than my wealth, etc.)
Active, mentally and physically. I like to see the world (and my neighborhood), have new experiences, stay fit, enjoy friendly competition, have meaningful conversations, read books, and generally stimulate my mind and body to a certain extent. Don't get me wrong, though, I love just relaxing in the sun, on the Internet, with a movie, etc as much as the next guy or girl.