Where are all the Smile's?

I've been looking through profiles, and I found that it must be hard to smile. I know life is confusing, and we all have to learn how to handle it. It's like walking down the street and looking at the expressions on peoples faces. Have you ever noticed that if you smile at one person you see, they return the smile, and then they smile at another person. So if everybody smiles at one person life might go by better for at least a minute. I try to smile all the time. I figure if im smiling then I will get smiles back. So is it really that hard to smile. They say that it takes less muscles to smile, compared to frowning all day. And if you smile at people they begin to wonder what you are doing. So if you have two seconds, Smile at someone and let them smile back. Just thought I would ramble on in here rather then bore people I walk by