I jump on LJ and start "randoming" all over the place. About 3/4 of the journals I see are from high school and college kids, but once in a while I'll run into someone in the 20-35 age range. I'll read their last few journal entries, check out their profile, and occasionally add them to my friends list.
I must've been really bored this week. I've added 10 friends to my list!