I look around this place (any place) and watch how people interact. In some cases, it’s a friendly smile- especially if a young nice looking person man/woman sees someone of the opposite sex. I’ve noticed a curtesy nod to elders maybe with a small trace of a smile. But if you are a little overweight, untidy, older than a collegiate but younger than a senior citizen, smile can be rare.
I’ve often been told, “smile, you never know how it will affect someone”. I know that when I am at the receiving end of a smile, I tend to smile back. Then my day will look just a little brighter from what it was.
Smiling… It can make a difference.