Poem by Jez Alborough:
Smiling is infectious,
You catch it like the flu.
When someone else smiled at me today,
I started smiling too.
I walked around the corner,
And someone saw me grin.
When he smiled, I realized,
I'd passed it on to him!
I thought about the smile,
Then realized its worth.
A simple smile like mine,
Could travel round the earth.
So, if you see a smile begin,
Don't leave it undetected.
Start an epidemic
and get the world infected.