A smile can bring a happy feeling, and a smile can resolve a misunderstanding. Smiling can bring happiness to family and good luck to life. It will make the tired feel happy, the frustrated feel happy, and the sad feel warm. If we have such people around us, we should also give them a smile to comfort them.
Smiling doesn't need money, but needs initiative. Maybe one of our smiles can help others and bring hope to others. Therefore, we should always smile in our life and give encouragement and help to others.
