For virtually my entire adult life I have worn sunglasses when I have to go out & walk amongst people. I make sure they are dark enough that people looking at me cannot see through them to my eyes. This has always helped me a lot.
My daughter has told me that some people are "on to me" ~ that they realize I use my eye-covers (dark glasses) to keep from meeting eyes w/them, so I can cross the street to avoid interactions (sometimes). Maybe so, but they can't prove that I saw them because they can't see my eyes. (Um, this is my own thought.... to be honest, my daughter probably knows, better than I do, how people react to me nowadays.) But I feel that although they might suspect that I'm avoiding them, I don't think they are certain.
I try not to go out in public unless I'm able to handle a few interactions; most of all in the small town where I've lived for decades, because I know I'll run into people I know. Nobody has seen me in forever, since I've become somewhat of a recluse over the last few years, so it's always going to be that reunion thing.