Other than playing the piano, reading occasionally, and watching anime, I've been getting into Tekken 7 lately.
It's got a ton of depth and an extremely high skill ceiling - the general thrill of testing one's skills against someone else has gotten me immediately hooked to it. I'm striving to improve everyday.
I main Lili, and from what I've read around the web, Lili players eat shit for every meal of the day, because they're the scum of the earth - and I agree.
Other than that, I feel I don't have a lot of hobbies.