I would spend it with God, my family, friends, excercise a bit more, and playing music and taking time to learn new songs on each of them. It's a little hard to play five instruments in a day along with everything else.
Listening to music,writing lyrics,going swimming and skateboarding,staying up late :p
maybe actually get some arm strength so im not a weakling. and go to the beach
Explore the world
Learn languages - right now I'm learning GÃ idhlig (Scottish Gaelic) in an effort to preserve it, since it's an endangered language & it's part of my heritage. But I also have spent four years on Korean, and I definitely wouldn't ignore that one!
Sleeping until I wasn't tired so I didn't have to balance how much I sleep with what needs to get done that day, hanging out with friends more, spending more time with my family, playing more video games and enjoying life more :)
I would eat, sleep, watch television, play lots of games and listen to lots of music, and include some reading and exercise too.
Listening to music
Playing video games...