GM

Say you're a new kid at school and you've never been a popular person. Do you care about who the most popular kids are? Maybe so you can avoid them!

After a few weeks you still don't have any friends, but you have noticed a few people that seem cool, so you "follow" them. Based on this set of follows, you can compute a "friend score" for anyone you don't know at all. It's simply the percentage of people you follow who are friends with the person in question. (There's actually a twist to it, but I'll get into that later.)