I find this question kind of hard to answer, because there are so many things I'd love to try. Though I'm an introvert, I'd love to try bar tending or waiting tables for the social aspect of it. I'd love to try out really small scale farming or herding goats to get away from tech entirely. Law (tax or business law, not something like criminal) is fascinating to me too.

If I was really forced to choose, though, it would be art or writing. The idea of capturing ideas and feelings, or creating worlds, characters and stories in visual or word form has a lot of appeal to me. That's probably why I make video games as a hobby.