I'm just now starting to discover I may be on the spectrum. It's has been blowing my mind...
After reading this article I think I discovered a couple things... For me, I always need something in my hands while in public, or unknown places. I would fidget with keys, chap stick, whatever was in my pocket... It helped in two ways, it was a outward distraction from myself and others so I could avoid eye contact, and focusing on something physically, even that small, could help my mind focus on task on hand, rather than painfully focus on every light, sound, texture, etc...
I have always been ashamed of doing stuff like this in public, because it didn't appear normal. I don't want ANY extra attention. So I buried the pain very deep. It came out later in terrible ways.
When I was child I was stuck in my own head. I diagnosed myself as crazy. I experimented (so to speak) on myself in order to fit in... I really wish someone would've just sat me down when I was younger and said you may have an issue with your mind. But it's okay. You can do things differently. Different is beautiful.
So the awareness for something like this is paramount in my opinion. If it helps, it helps.