i suggest you sign up for a 24 hour scavenger hunt around your city, that is what i did on the day i got my first fixed. that was the first non-mountain bike i had ridden and the first time in streets. My only problem was almost falling asleep and getting almost bucked off. you need to be one with the bike (hehe) I also had to tow some long-boarders
wear flat shoes ie indoor soccer shoes / slip-ons, something that is not treadless though, you need that to learn to flip your pedals on the fly.