Haha that damn Degrassi. Never did me any good, either. Well, there really are no secrets as posted above. Just, be you. And as far as making friends with the popular crowd...well...I guess there is one secret.
There is no true popular crowd. There are people who are known. But like we've said, be true to yourself, and I'm sure you'll become known. It worked for me, and I moved in the middle of my 10th grade year, shy as hell. And here I am, graduating with shitloads of people who I can call friends.