…walking down the street

I say hello to a lot of people. And apparently I meet a lot because I always try to go out and do things.
Today, I went grocery shopping immediately after a training run (Up and down Emily Murphy hill 9 times. I don’t recommend that.) So, while I am still hot and sweaty, in shorts with no pockets, I navigate the aisles of Save-on-foods looking for the groceries to sustain me for the next week.
Into this scene I bump into a woman, good looking and obviously healthy. And she says “Hi” like she knows me.
I apparently can not recognize people I don’t see on an ongoing basis. She looks vaguely familiar but I can’t place her. Since she is healthy looking, I’m going with the theory that it is someone I ran with as part of the Running Room.
I make small talk, and it seems to go well. She has no idea I don’t know her.
This has happened before. Pretty woman say hello to me, and I have no idea where I know them from. If I even do know them.
This is a good experience, I just wish I could act better on it.