Smiling is infectious, you can catch it like the flu.
When someone smiled at me today, I started smiling too.
I passed it round the corner, and someone saw me grin
When he smiled, I realised - I'd passed it on to him.
I thought about the smile and realised its worth.
A single smile like mine, could travel round the earth.
If you feel a smile begin, don't leave it undetected.
Let' start an explosion quick - and get the world infected!