I aim for balance as much as I can; I'm passionate about my work, but also try to make as much time as I can to go out and meet interesting new people.
Outside of work, I do a bit of volunteer/outreach/advocacy/shenanigans (usually involving writing or going to local schools to talk to students), and for hobbies I'm into working out, reading, writing, kickboxing, kayaking (especially sea), camping, and yoga. Usually not simultaneously, though.
Also traveling, which I'd love to do more of; I was in Japan a few years ago for a little while and Brazil twice last year (all initially for work-related things) and loved them. Indonesia in December.
Music: I always find this one to be tough, but lately: RJD2, Quantic, Herbalizer, Eddie Floyd, Sly and the Family Stone, Miles Davis, Portishead, Misfits, Thievery Corporation, Mr. Scruff.
Books (I'll go by author): Martin Amis, Iain Banks, Ray Bradbury, Junot Diaz, George Orwell, Sam Harris