One thing I should mention right away is that I'm polyamorous, and am in a long-term primary relationship that I'm very happy with. So if you're looking for someone to marry and have children with, I'm not your guy. But I'm open to anything from friendship (new friends are always a good thing) to a long-term committed secondary relationship.
I am open, honest, passionate, and playful.
Connecting with my partner in dance.
Playing games (by which I mean not that I win a lot, but that I'm good at the important thing, which is playing in a way that means I and my opponents have a good time).
Math, logic, and analytical skills.
Books: The Princess Bride (the movie is great, but the book is even better!), Sometimes a Great Notion, Goedel, Escher, Bach, Guns, Germs, and Steel, How the Mind Works, Consciousness Explained, Harry Potter, Tales of the City
Shows: Company, Sweeney Todd, A Funny Thing Happened on the Way to the Forum, Death of a Salesman, The Iceman Cometh
I used to listen mostly to classical music. Now I seem to see music mostly through the lens of dance, so what I like best is whatever is most fun to dance to in whatever style of dance I'm enjoying most.
I tried to increase the list to six, but every time I did (assuming I left out the boring stuff like air---I mean, what do you learn from someone telling you on their OKCupid profile that they couldn't do without air?), friendship seemed so much more important than the other things on the list that it seemed more honest to ignore the demand to pad the list to 6 things.
I've also been thinking a lot about the process of making decisions, both consciously and unconsciously, and when and how people are rational and irrational in their decision making.
Or if you're just looking for someone interesting to talk to or dance with.