Friends that are new can be a refresher. They will help you when you don't know what to study in a new class. When one of their friends makes fun of you, they will stand up for you. When you feel alone because you and your other friends are in a fight, they will let you sit with them and their friends at lunch. When you can't seem to find anyone to hang out with, they will be there to talk to you. When you need to be cheered up, they will tell you an inside joke. A friend, old or new, will be there for you.