Drawing comics is a time-consuming business - especially if you, like me, not only keep a two-pages-a-week updating schedule, but are also juggling a sideproject and half a dozen other ideas - so I have to squeeze my hobbies in as best I can.
I read a lot - books and comics of all kinds. Right now I'm in the middle of Station Eleven by Emily St John Mandel, and am doing a second read-through of Moby Dick (for fun! I swear this novel is not as boring as your English teachers might have led you to believe!).
I watch cartoons and anime - right now mostly One Piece, which I have been following for ten years and love to pieces.
Whenever I have the time, I play videogames. I prefer JRPGs and puzzle-games like Professor Layton. Right now, I'm in the middle of my 10th (!) time playing Final Fantasy IX - my favourite FF-game. I'm pretty slow at finishing games, which means I'm kind of permanently behind on games.
And in whatever bits of spare time I have left, I try to study all kinds of history - I am such a history-nerd - and am trying to teach myself French via Duolingo. It's going quite well so far!