What are the stereo types of a 'friends circle'?

Ok, so a couple days I heard that whenever you have one group of a few people you hang out with, that's your circle of friends and that in your circle of friends, there's always people in the group that fit each personality (such as: One person- class clown; Someone else- the friend that's always eating; Other person- troublemaker; Another friend- goody two-shoes) I was wondering what all of the personalities were so that I could categorize each of my friends. Please help and thanks in advance!