We used to have a bright yellow bumper sticker on our car that read 'Smiles Are Free, Use One Every Day' with a smiley face on it.
Many years before that, I knew a poem about a smile that travelled the world and just now over at Mohave Rat's blog, I was reminded of it.
Of course I couldn't remember it, so off I went to Google and found it.
Here it is:
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 realised I had passed it on to him
I thought about that smile and then realised its worth
A single smile like mine, could travel round the earth
So if you feel a smile begin don't leave it undetected
Lets start an epidemic and get the world infected :D
I bet this makes you smile! If it doesn't, then I'm sorry, but you're probably dead and should lie down before you fall over.