Suna hai keh ap ki 1 smile par Log martay hain,
So keep smillind....
To reduce ...
Population:).

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 my grin.
when he smiled I realized.
I'd passed it on to him!
I thought about that smile,
then I realized it's worth.
a single smile just like mine,
could travel round the Earth

U know what is the largest word in english language.
"SmileS" bcoz there is mile between two "S". (S mile S). So
spread smiles everywhere