I love smiling at people. I especially love smiling at strangers. It costs me nothing and the return for something completely effortless is tremendous.
For example: Today as I waited for a light to change so I could make the turn into Starbucks for my daily green tea a rather glum looking man started walking across the intersection. Having nothing better to do at the time I watched him as he walked. When he got in front of my car he happened to glance over, saw me smiling and smiled back. His face lit up. His whole body straightened. He looked like a different man entirely when he was smiling.
Sometimes I wonder if my smile will get passed along later. It's ok if it doesn't, of course. Just the thought that it brightened one moment for one person is enough for me to float on for a while.
Gotta go now. There are people out there needing to be smiled at.