First day of highschool?

it was my first day of highschool in canberra but i only went for like an hour to meet my pastoral care teachers which are like my main teachers all my friends r in one cl aand im in another with 6 girls 5 of them r besties and r really weird talk about odd stuff n the other girl didnt talk much oh n i can b a bit shy infront of nem people wat do i do