You don't like crying, right? So you must prefer smiling, because you know smiling will let people forget everything unhappy. Every day, we see teachers or students and say, "Hi/Hello! How are you?" At the same time, you are smiling, right?
Smiling can let you have more friends. With a smile, people will know you're a kind person. They will talk with you, so you will have more and more friends.
So I say, smiling is like a flower, the sunshine, warmth. It will give you happiness.
