Don't you have a similar experience before? Where you saw a stranger having a happy smile on her face and before you knew it, you were grinning for no apparent reason too. Then someone saw your grin, and he smiled too. You probably felt a little silly for smiling without any reason at first, but when your smile brought a smile to someone's face, you knew that it cost nothing to brighten up someone's day. May you freely give away your beautiful, happy smiles! Smiling is infectious, You catch it like the flu, When someone smiled at me today, I started smiling too. I passed around the corner, And someone saw my grin, When he smiled I realized, I'd passed it on to him. I thought about that smile, Then realized its worth, A single smile, just like mine, Could travel round the earth. So, if you feel a smile begin, Don't leave it undetected. Let's start an epidemic quick, And get the world infected.