To be a teenage werewolf get a pair of jeans with at least one knee ripped out. Sew a patch of brown, grey,or both, fur into the knee. Get a long sleeved shirt and stuff arms with tissue or add 1-2 more shirt(s) to make the effect that you have big muscles. Have a werewolf mask or paint face and add long snout with big teeth. Then you will look like a teenage werewolf.
Thanks to Phylicia for this great idea!!