I enjoy hiking and being outdoors. I've hiked most of the Boulder trails and want to try the ones I haven't (notably South Boulder Peak and some of the paths up Green Mountain). My favorite local hike is Bear Canyon; I appreciate the variety of the spectacular and the subdued, and the birding is great.
I want to make the world a better place and am passionate about effective altruism. I'm not fussy about how I improve the world or which global problems I work on; my goal is to as much good as I can and I'm happy to choose whichever problem I'll be able to help with the most. My intention is to live relatively frugally and donate whatever I don't need to the most efficient charity I can find (givewell.org is great for this).
I don't naturally seek socialization, but I tend to enjoy being around other people anyway. The lack of a strong social drive makes it hard for me to make friends, but I've known the ones I have for many years and am very close to them. I enjoy conversations about virtually anything intellectual, and tend to focus on areas in which I disagree with other interlocutors. My brother once said he had "never seen a better living personage of devil's advocate."
I prefer one on one interaction to conversing in a group. When talking to multiple people I'll often think of something pithy on a topic right after the group moves onto another topic, so it's harder to discuss an issue in depth. I prefer listening to talking. I'm more interested in refining my opinions than in changing those of others.
Books - favorite fiction: "The Wheel of Time" by Robert Jordan, "Sword of Truth" by Terry Goodkind, "Stormlight Archive" and "Mistborn" by Brandon Sanderson (currently my favorite author), "The Inheritance Cycle" by Christopher Paolini, "Wars of Light and Shadow" by Janny Wurts.
Books - nonfiction I enjoyed recently: "Whistling Vivaldi : and other clues to how stereotypes affect us" by Claude M. Steele, "Meta Math! : the quest for omega" by Gregory Chaitin, "Who needs God?" by Harold Kushner, "Dolphin Diaries : my 25 years with spotted dolphins in the Bahamas" by Denise L. Herzing.
I also enjoy math and physics textbooks, the occasional mystery, and some less epic science fiction and fantasy.
TV shows: Star Trek (especially the ones involving bizarre ethical dilemmas or time travel), the Good Wife, Doctor Who, and Sherlock.