Smiling is infectious: you catch it like the flu, When someone
smiled at me today, I started smiling too. I passed around the
corner and someone saw me grin When he smiled I realized I'd passed
it on to him. I thought about that smile then realized its worth, A
single 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!