Reading (duh), writing (theoretically), pens, flags, music (alternative, electronic, and classical mostly. K- and J-pop also welcome), languages and scripts, trains, astronomy, anime, assorted fandoms.
As someone who isn't very good at playing the piano but took lessons for like eight years and knows a whole bunch of people who are incredible pianists.....imma hafta take your word for it on this one.
Oh, to be clear, I barely play the piano myself. But whenever I can get a song I'm working on right, it more than makes up for all the frustration that learning it caused.
There's also the secondhand aspect. Watching somebody very talented is spiritually fulfilling in its own right.
