If you accidentally lock eyes with a stranger in public and then as you look away, you see the other person give you a smile. Do you-

I understand the answer may change depending on how much you looked away but answer the poll based on which way you tend IRL or which way you have mostly acted in this situation in the past.

To those who usually become the first smilee IRL, do you feel awkward when they don't notice you or pretend not to?