I'm not one for crowds, and would much rather spend time having a good dinner with a small group of friends than checking out latest busy club.
I can be shy in new situations, but it doesn't take too long for the opinions and the sarcasm to come out.
I'm more of a pessimist than an optimist, but that doesn't stop me from enjoying the smaller pleasures of life, like basking in the park on a beautiful day.
I'm also really into stand up comedy, and would love to have someone to go to shows with. (Louis CK, Patton Oswalt, Dylan Moran and Tim Minchin are a few of my current favorites)
Rationality matters to me. I devour sci-fi/fantasy/horror fiction, but fiction is where that stuff strictly stays. I'm very much a skeptic. Pseudoscience is an active harm upon the world and gets in the way of real scientific progress.