dont start a fight. but you dont put up with crap like that either. dont let let yourself be pushed around. if he hits you again, and you DO make the decision to hit back. go after him with EVERYTHING. he's tall, but theres plenty of low places that hurt like hell. even if he still wins. if you hurt him good, he wont hit you anymore. be smart about it too, i'm not promoting violent behavior, but you can't just let people hit you like that. try not to get in trouble unless it's unavoidable. forget about learning a few martial arts moves that probably wont do you much good in your sitiuation, you don't have time to master a martial art if this guy is bullieing you now. either be a runner or a fighter. the best way to learn how to swim, is to dive in.