Dah fuq is up with this thread? I think a lot of you are unbearable on this forum so naturally, most cool guys are going to avoid you in the real world.
For me, I had a great social circle out of college in NYC. I lived in a naturally young part of the city where people were in their 20s, apartment buildings had a community atmosphere to them, and neighborhoods were young. Saw some people around a few times in the apartment, they started randomly talking to me and me to them and then they invited me to some events. Met one guy then another and then they knew some girls and those girls had friends and then it all came together into one large loosely connected social circle.
Recently I've been focusing on my career but my workplace is mostly people in their 20s so I have made friends to some degree with coworkers but also friends with some of their acquaintances, mutual friends thing is real.
I have a lot of people to hang out with if I want but I also spend a lot of time (60+ hours a week) working so not as much time to party, the option is there though.