I usually get my arse handed to me due to some of the lag that's caused by my 'ancient' connection, so I usually steer clear from PvP once I get all jobs for that character (or if there are no 3rd or 4th jobs for a character) and just dungeon. Course, that gets old for a while, and I don't even try to spam Maw. I usually aim for the places that nobody goes to (Valstrath, Altar of Judgment, Temple of Destruction, the whole of Silver Land just for fun, etc.)
But PvPing every once in a while with people around my level is good. I also try to be a good sport about my losses, although a 36% win rate won't get you many teammates (Ugh...People are too serious sometimes...). You'd be amazed at how many friends you can make just for being a good sport.
Pinkie Pool's archnemesis: Oatmeal.