What to Do In This Situation?

theres a guy i dont like at school, hes sort of in with my friends, in convos he always stands in front of me and tries to push me out and its getting annoying, he thinks hes really cool, but dno what to do, im tempted to kick him in the balls and drop an elbow into his neck but that mite be a bit of an overreaction, sounds fun though :) any ideas?