I don't know anyone in homeroom! What do i do??

ok.School starts the 28th and in my homeroom i know no one!! I'm going to the jump start thing its where u see which cles ur in and stuff like that.Well i don't know anyone in my homeroom but i know other people in the other rooms! What do i do??? I'm a pretty shy person but wild around my friends!!! How can i make friends with other people without looking like motha ****** *** whole!?!?!?!And i'm in middle school :]