in jc damn simple, just play the tried and tested punk rock 3 power chord combi, palm mute during verses and arpeggiated 'solo'. then sing about teenage angst, kena scolded in school, kena rejected by girl etc. it should be just enough to get you a 'fan club'
must also make sure the most popular guy in school is in your band. play like shit nevermind. you alternative here alternative there the girls will be scared. that's why nowadays they are hooking up with bungs. real men too hardcore for jc scene lah