One time, when I was working at a summer camp as a specialty staff, my coworker/roommate who I barely talked to and barely knew randomly pulled out his switch and asked me if I could do a part of Celeste he was stuck on. I said sure, and did it for him, but then asked why he asked me in particular. He just said I 'seemed like the type of guy to have beaten Celeste'. I haven't started socially transitioning, so I don't know where that vibe came from, and I still think about it 
When I have a one off interaction with a stranger in the city centre, I often think about how, in all likelihood, despite living in the same region, we will never see each other again for as long as we both live. It makes me feel strange.