If I feel ok or good, I smile at everyone, i offer them to go in front of me for the bus say hello.
When I am not good I keep my head down or wear earphones, i don’t turn them on but then no one speaks to me. I don’t want to be rude but if I have had a panic attack or stressed I can’t always speak so this is a way I protect myself.
It really is the simple things that make a difference.
What do you do ?