I'm involved in local fandom; I volunteer at a local literary science fiction convention, and attend the Worldcon most years. I play and design tabletop games, though none professionally yet. Despite a brief flirtation with the guitar, I don't play an instrument, but I sing pretty well.
I don't think I'm a stereotypical Seattle-area geek, but I'd be hard-pressed to point to exactly where I deviate from the standard model.
I have very interesting socks.
I'm not that into movies or TV, to be honest. Nothing against them; I just never seem to have the time to dedicate to them except as a social pursuit. I'll happily watch things with you, but I won't go home and catch up on your favorite series.
The Mind's "I", The Phantom Tollbooth, The Player of Games, and A Wizard of Earthsea, among others.
The last few artists in heavy rotation on my iPod include: The New Pornographers, Cake, Janelle Monae, The Magnetic Fields, Renaissance, Yes, Thomas Dolby, Amanda Palmer, Dream Theater, and David Bowie. (Outside is a criminally underrated album.)
Anything interestingly spiced and creatively made. I haven't found a cuisine that didn't have something to appreciate in it, though I have a soft spot for well-done variations on traditional dishes. Conveyor-belt sushi is my guilty pleasure.
Honestly, I'm not sure there's anything I could never do without. I like my comfortable life, but I don't think any of my modern conveniences are absolute necessities to go on living. As long as there are other people around, and at least some of them are friendly, I think I could find a way to get through.
All of that notwithstanding: I'd be pretty peeved to have to do without the Internet; too many of my friends are chat-pals these days. And there are some things that I keep with me all the time. So, let's call the list at my phone and my glasses, and figure that I'll improvise the rest.
The rest of the things I'd want to list... aren't things, and something rubs me the wrong way about listing people alongside things. So, that's something about me, I suppose.
Like many engineering-types, I want to find solutions to a lot of the real problems of the world. Unlike many engineering-types, I don't much buy into the idea that strongly self-interested solutions are the way to do it. If you're a fan of Ayn Rand, it's not going to work out. Sorry.