How do you grind?

I haven't been grinding for a while (mostly doing ppq for the hat, and other miscellaneous things). But when I did, it was mostly turn on my music (well, my music is always on, anyways), find a map, and start jumping around and shooting.

I don't even bother loading up on pots, since I don't use that many to begin with. Usually I go until my stars run out, I get tired of grinding, or fall asleep and die. D|