Smiling is an attitude toward our life,there may be some unpleasant example,you fail in an exam;or another time,you are misunderstood by your unpleasant things may make you feel what will you do?Why not learn to smile?Smiling to yourself can bring back your ,the greatest enemy is yourself;that’s to say,sometimes,you are beaten by should also learn to smile to will help us get closer to is the most widely understood