Go home to hang out, watch TV, have a snack.
Go right to your homework.
Hang around in the city, possibly with some friends. Get home very late.
Cause some trouble, but get out of your problem easily.
Hang out with friends and do nothing productive. Get barely any of your homework finished.
You don't have too much fun.
Be productive, whether exercising or investigating.
You don't read.
Any type of fiction.
It depends on how much you care about the person. From making it worse to getting an ambulance.
Do whatever you can, helping emotionally.