Let's Get the World Infected!
(Author Unknown)

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 -
and when he smiled I realized, I'd passed it on to him.
I thought about that grin, then I realized its worth,
A single smile, just like mine, could travel round the earth.
So, if you feel a smile begins, don't leave it undetected -
Let's start an epidemic quick and get the world infected!