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 realised

I'd passed it on to him.

I thought about the smile

and understood its worth.

A single smile like mine

Could travel round the Earth.

If you feel a smile begin

Don't leave it undetected.

Let's start an epidemic

And get the World infected!