what is the advantages of smiling?

You sound friendlier when you smile while talking on the phone because your vocal chords actually lift up. When you smile, the action triggers endorphins in your brain, which makes you feel better.When you smile, you pull your cheek muscles up, making your diction clearer. It improves the quality of our lives, and help us to live happily.
Also, you can give it to whomever you choose and give it as often as you choose.
It requires no special equipment, costs you nothing to give it , absolutely free.
You can give it to many people at the same time.It can go around the world and is always appreciated and may do more good than you will ever know

be a easy going people, more firend, longer life, happy myself, friendly environment, prevent dead air

ease tension
shorten human barrier
soften hostility
improve harmony
enhance communication
deepen understanding
mitigate peevishness
captivate beauty
charm attention
in concert to pay lip service
at a lost for words..................then smile

Smiling makes you happy.
Smiling makes others happy too.
Smilling shows hospitality.
Smiling means friendship.