Smiling is infectious
You catch it like the flu

When someone smiled at me today
I started smiling too

I walked around the corner
and someone saw me grin

When he smiled I realized
I had passed it on to him

I thought about the smile
And then realized its worth

A single smile like mine
Could travel round the earth

So if you feel a smile begin
Don’t leave it undetected

Start an epidemic
And get the world infected

Spike Milligan