If each of us dedicates genuine smiles to the destiny of the lonely people, the pitiful handicapped people, the lonely old people, we would have extended a kind hand to save them through their life. Smile is a lifeline for many people in life's waves.
Smiles are not always beautiful, either. It is when the smile does not mean the real meaning of the smile, when it is the smile of pain, despair of those who use the smile to cover their weaknesses or completely lose faith in life. . This is a very pitiful aspect of the nature of laughter, sometimes being used by bad guys to mock others, laugh at the suffering of others. This is a very blameful thing.
The smile is simple, but it is the root cause of life. So in life, you should give a friendly smile as a joy, hope for others and be aware of, laugh in any circumstances, and nuance of expressions accordingly.
Smile for the world more peace.
Smile at everyone and everyone will smile back at you.
