People in the US have to move fairly often for graduate school, jobs, etc. While some subset of the groups you're seeing are childhood friends, a large number o

People in the US have to move fairly often for graduate school, jobs, etc. While some subset of the groups you're seeing are childhood friends, a large number of the people you're seeing have probably not been friends for all that long in the lifetime scheme of things! Creating new friendships is difficult and quite similar to dating. It sounds like you're already part of a few groups, that's great! A good next step would be to approach interesting people w/in that group on an individual level and see if you have friend chemistry. This blog has a lot of great advice for the type of person most likely to end up on HN. http://captainawkward.com/2011/12/19/question-153-how-do-i-make-and-keep-friends/ http://captainawkward.com/2011/12/19/question-153-how-do-i-m... Best of luck