So, in the past I had this problem where if I would be walking about in the city(whether it be New York or Boston or wherever)or in a mall and I'd cross paths with someone who looked like a friend or aquaintence and I wouldn't say hi
because
I would just assume it wasn't them.
I'd think,
The city is bustlin' with what appears to be thousands of pedestrians.
What are the chances that one of these 1000 people would actually be someone I know?!
That must just be someone who looks like them.

But then I'd find out it actually was indeed them when they called me an hour or so later and told me and asked me why I looked at them in a confused way and didn't say hello.

Well, recently I have actually started to say hi and accept the fact that my friends and aquaintances almost ALWAYS pop up in 1 in a million situations and it turns out it is indeed always them.
I'm glad I finally cleared that up!