applecart or cino59?
Before you even begin looking at links, see items 1-6 (3 and 5 should be omitted if you are not of legal drinking age):
first - check to make sure everything is seated properly: no loose screws, bolts, rings, etc.
second - make sure the brake works.
third - have a beer or two
fourth - what kind of pedals did you ride before? do you have shoes for clipless pedals?
fifth - yet another beer
sixth - post your responses below