First,you must learn to smile to yourself.In yourlife,there are many things that make you unhappy.For example,you didn not pass test or lost your best friend.But you can not sad.You should smile.Smile mind make you become confident. Because it is you to beat yourself sometimes.Then you should learn to smile to everybody.If you do that,you could make between you and people more approach.And the smiling is also a language.Everyone can understand it.

   So learning to smile is very important.Let's learning to smile!