In the interest of upfront disclosure, I am a total geek. I know computers inside and out, I love science, and my genre of choice is fantasy/sci-fi. I could list a million other things that unavoidably make me a geek, but I won't for the sake of brevity. I'm also a gamer, in a very pure sense of the word. I like not only video games of every type, but board games, and tabletop games, and everything else in the "games" category.
I'm am also always "cracking wise", as no one has said ever. I find humor in everything, and I am always looking for opportunities to make people laugh. I enjoy deep serious talk, but serious mode is not my default.
Finally, I'm a really (really, really) open minded person. I'm not afraid to try new things, and I like a little bit of something in everything. I have yet to find a food that I won't eat (and I've tried a lot). This openness isn't just limited to food of course, but suffuses my entire life. I can understand not liking something, but I can't understand not being willing to try something at least once. (When I say this extends to everything, I mean everything, I'm a very sex-positive individual)
All of the above is maybe a little generic though, especially in SF; if you really want to understand me, you must understand that my favorite punctuation mark is the semicolon (followed by the interrobang), I refer to my dishwasher as a robot, and I once literally fell off a horse and then got right back on it.