I think that the primary defining feature for me is my sense of humor. Everyone thinks they have a sense of humor. I have objective proof. Really. I realize I am not proving it right now. You'll see.
I am a prof/scientist and consider myself somewhat geeky, but I don't think I strike most people in that way. I'm not shy and am pretty confident. I'm established in my career, though I'm always wanting to get further.
I have to admit to often being a home-body. I love a lazy day at home, cooking, staring at the moving picture box, but I am very open to non-couch-potato activities. I do like to get out and enjoy day trips to the little towns in the region. I'm open to just about anything...not dancing.
*Update* I was recently dancing. What can I say, I have strong opinions that can be changed. I think that is a positive attribute.