Last year's school trews ( bit short, too tight, you get the idea); white socks and school shoes. Either a v smart, pastel-coloured v-neck jumper with gelled parted hair or school shirt, shoestring tie if you can and a jacket, pref slightly too big (big brother's school blazer would work well!)or a leather bomber type jacket if there happens to be one lying around!
Think Happy Days and the Fonz!