It's a hard thing to get popular so read this words carefuly! First of all u should think about what can u do to make a small show! U should say some jokes about things everyone hates (math teacher, school's principal etc) but not too many! Then after a while u should try to make as many friends as u can. After u have about 20 good friends who can defend u if someone tries ti kick u, u can get some attitude. After some people can see u like a nice dude u should try to maintain this reputation!
Good luck!!!
P.S. I did something like this in the 3rd grave and worked till now(9th grave)