Intend a friend.
Seriously though, for me, it's not just making friends, it's making the right friends. The kind of people you hang out with has a very large effect on the way you think and view life and so forth. Back in high school, I hung out with a group of very down and cynical people for three years and I became like that. In my last year, I broke out of that group and made friends with upbeat people and I've done more and had a lot more fun. So, my advice would be to not make friends for the sake of having friends, but try to get more quality relationships (quality vs quantity).