It is said that smile costs you nothing but it pays you a lot. When we smile, we convey a kind of positive message to others. Our frowned face could send a wrong message. Smile is contagious, if we smile, others near us or in front of us also smile. I make it a point to smile and greet people whom I meet in my day to day life. I am sure a smiling face and some positive talk could make my day.