What is smile.Smile is a kind of language, let a person feel warm. Smile is a song, sing the love in the heart. Smile is the power, let people be full of confidence. When you fail in the exam，don’t be sad.You should smile to yourself and you will have confident. When we are criticized by our teachers or our parents, We should know that they want to make us better.So In daily life，we should learn to smile. When we give others a smile，we will feel happy, too. Living with a smile, every day will be sunshine.Fust learn to smile，you will find the world is wonderful.