When I'm not cramming for finals or writing 3000 word papers the day before they are due I like:
Listening to music (especially my lp collection or my 45's)
Going to the beach
Trips to my family cabin
hanging out and watching family guy/kevin smith movies/simpson's with my friends.
The pub (unfortunately I am now the DD b/c alchool causes me to stall)
Watching the looks of confusion on peoples faces when they haven't seen me in a long time, and how dumbsmacked they become when they realize who I am