SMILE!

Smiling is infectious, You catch it like the flu! When someone smiled at me today, I started smiling too! I passed it round the corner, As someone saw my grin, When he smiled i realised, I'd passed it onto him! I thought about that smile, And i realised it's 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 epedemic quick, And get the world infected!