Now... where to begin? I guess that, rather than sticking labels on myself, I'll give examples of things I do to show what I'm like instead.
In a group, whether it's with people I know or don't know, I hold back on talking until I feel comfortable that I have something worth saying. How long that takes depends on the group, and sometimes, there's just nothing to be said, and that's OK. Once I'm comfortable though, I open up and start chatting away. I don't like small talk for the sake of small talk, as I'd much rather talk in a more genuine, relaxed, and direct manner with someone as soon as possible. The sooner we can talk about things that we're passionate about, the better. Speaking of things that I enjoy, I keep up on almost all science topics, but especially astronomy, neurology, and paleontology, as well as all kinds of history, language in general and foreign languages in particular, some lighter philosophy, and current events. In my spare time, I sketch faces, try to become a better singer, write a blog, listen to good music, read good books, and generally try to learn whenever and wherever I can.
I don't follow any sports religiously, although I do like going to a good Reds game every once in a while (I love the atmosphere in a ball game). I also prefer quieter, slower paced activities (like talking walks, hiking, or going to a less crowded place to eat), but that's not to say that I won't try new, loud, or fast paced things. Politically, I believe that government can be a force for good, but only if people stay informed about the issues and keep after their representatives to actually represent their interests. Government's only as good as the voting public and the people running it, whether government's big or small. I do not attend church nor am I a part of any organized religion, however, I would consider myself open-minded about spiritual experiences and other faiths.
I've gone for all kinds of women: tall and short, thin and thick, blonde and brunette. I like women who: genuinely want to know how you're feeling; express a lot with their faces and talk with their hands; have a curiosity and awe about the natural world and a passion for learning; are not afraid of going after something they want; keep an open mind about different perspectives; display a lot of affection when they're comfortable displaying it; show off their weird little quirks (we all have them) and aren't afraid to be different and speak with their own voices and be their own person; and will laugh at a fart story as quickly as they would discuss deeper issues like the meaning of life. Oh, and you get brownie points for having any one of the following (although none are a requirement): red or reddish-brown hair, freckles, bright eyes, bangs (straight or side), chin-length hair, blunt cut hair, or a great, breathy, nerdy laugh.
As far as places to eat, I'd prefer something that's not too stuffy, somewhere where we can feel comfortable. Maybe a walk afterward would be nice, or maybe even a little shopping at some shops nearby. I just want the date to be casual and to go at a pace that allows for us to get to know each other and spend a nice afternoon or evening together. Maybe the art museum as well? It's cheap and you can learn a lot about someone from how they react to art.