Moving how to make friends in high school?

well im a sopre and i am going to a new school next year in a completely different state. so how am i gonna make friends . so i wont be sittin alone at lunch ? plee give me some suggestions on how to make friends. i have always made friens easy but i havent had to make new friends in high school where everyone pretty much has their own set of friends and isnt really interested in letting you in on "their group"