I'm blind to other people's feelings about me, and I'm no longer willing to accept that blindness. I've thought about what other people do that convinces me they like me: invitations and testimony. I trust that people like me if they ask me to spend time with them or spontaneously give me an example of why they like me. Otherwise I suspect their feelings. I don't think people are out to get me or concealing hatred, I think people are out to be left alone and concealing their disinterest.
I've been trying to apply my own rules of friendship evidence to myself by inviting people I like to spend time with me and making an effort to tell people why I like them. It's fun.