Getting me to talk about myself is a little like pulling teeth, but if you ask me specific questions, I'm more than happy to answer pretty much anything.
My friends tell me I can be very witty, I generally find that's only the case when I don't try too hard (at least that when they laugh the most). I have a somewhat dry/sarcastic sense of humour which sometimes teeters on the edge of the surreal.
I like to think of myself as a realist (but I know some people would consider me a pessimist), but even when things go wrong I can often find a sort of ironic, grim amusement from it. I'm fine with optimists, unless they constantly try to infect me with unrealistic happiness, I'd much rather they just (humorously) took the piss out me, or make fun of the situation, much more likely to make me smile, that saying "Cheer up, it may never happen."
I've never really been the life and soul of, well pretty much anything really, I'm a bit of an introvert, I find large social group to be exhausting, and I tend blend into the background, but I do like to spend time with good friends and have long rambling conversations that when you reach a natural pause, you sometimes wonder how the heck you ended up talking that. I know tons of useless information, unfortunately because it's useless, it's not particularly useful in pub quizzes (darn it all)