A smile is more than just the expression that you have on your face when you smile. Smile is a life way! :)
Have You ever smiled?
It is a very good practice and if you smiles more, you look so cool.
When you smile, the corners of your mouth curve up and you sometimes show your teeth, it can relax you and definitely it makes You nicer!!
You just need to put your face in front of frontal camera and start to smile. It seems to be so easy, really?
If You want, You can take a photo while you are smiling and after share it with your friends!
So.. What are You waiting for?
Be happy, Smile!