A few weeks ago I was walking into a local store. An older gentleman was walking out. I noticed that he did not look happy. At that same instant we caught each others eyes and I simply smiled at him. He looked around, almost as if he was wondering who I was smiling at. Once he realized I was smiling at him he grinned ear to ear.
A simple smile can change someones day.
I don't know about the man, but it changed mine.