Smile

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 I 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!