Smile is an attitude to life.In our life,there maybe be something unpleasant.For example,you fail in an exam;or another time,you are misunderstood by your friends.These unpleasant things may make you feel bad.Then what will you doWhy not learn to smileSmiling to yourself can bring back your confidence.Sometimes,the greatest enemy is yourself;that’s to say,sometimes,you are beaten by yourself.We should also learn to smile to others.It will help us to get closer to others.Smile is the most widely understood language.