I think smiling is as important as sunshine. Smiling is like sunshine because it can make people happy and have a good day. If you aren’t happy you can smile and then you will feel happy. Someone may say “But I don’t feel happy.” Then I would say “Please smile as you do when you are happy or play with your friends happily. You will really be happy again.”
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.