Good question and if i had the answer i dont think that I would be SA sufferer.
Making friends is something I have struggled with for most of my life. I look at people who can easily interact with others and think how do they do that. I've had SA since the age of 13 and sometimes I think that my social skills stopped developing at that age. Because since 13 I have become socially paralysed, I'v never really enjoyed a conversation because the entire time I was thinking about the next thing to say and about being judged and various other things. I dont think I allowed my social skills to develop and thats probably why I find it hard to make friends.
On all other levels I consider myself quite mature but not with my social skills.
I heard that people like to talk about themselves a lot, so I tried that and allowed others to dominate the conversation and i would encourage them by asking questions, but that did not work. They didn't want to be my friend and plus I fould the expereince unsatisfying.
I know that deep down to make friends you have to be yourself, because then you will attract the right people. But how can you be yourself if you dont know who you are.