Did I inadvertently move to Akron Ohio?

I was just walking home from sushi with a friend when a girl I've never seen before in my life, while talking on the phone, smiled at me and mouthed a very friendly "hi." Admittedly, best guess is that I actually know this person as I frequently do not recognize people I even know very well. However, it made me think that strangers were being unduly friendly and I had been transported someplace else, someplace less urban, less to my liking. Sleepy time bear.