Yo just saw this documentary The Corporation, its about how the corporate system is inherintly bad. But they talked about how people become freinds through consumption. Think about it eating out, movies, watching tv, going to baseball games. It is odd how we do that, but not blazing! Anyway try to make friends with people without having to do stuff that costs money, think on it.
yeah, it's mostly a matter of how comfortable you are just walking up and talking to people... i know that i sometimes have a problem with it - it helps to have that association through an activity.