show that you want to be on varsity. i showed that at tryouts and i actually got to play as the second seed on my team. plus, you shouldn't be intimidated by other guys. just show you can top all of them. and always run for everyball even though if it's really far away from you, your coach will think that your a great hustler and it pays off at the end. oh and one last thing. play lots of tennis matches. it helps you a lot. especially me.