A Smile is infectious,

You catch it like the flu.

Someone smiled at me today,

And I started smiling too.

I passed round the corner,

And someone saw me grin.

When he smiled i realised

I'd passed it on to him.

I thought about that smile,

and realized what it's worth.

A simple 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