a little child's smile can change the world for the better
The boy's smile can indicate a positive emotion, so this is a response to something very pleasant. A smile can also be a form of child communication. and a smile becomes an important indicator of child development and skills.
at birth, the child can already smile. At the age of a child of one month, his smile can be identified as a reflective smile. and the smile is just a reflex, although it does not yet have a certain meaning.
at the time they cursed the age of five to seven weeks, the smile given is a social smile. thus because of their smile as a social response from their surroundings.
a child's smile affects the emotions and behaviors of those around us
and for that make sure your baby emits a smile with healthy teeth, no holes. so for small children themselves, a smile will make it easier for them to socialize. Healthy teeth also mean and can reduce the burden of parents.
With my explanation it is not only impossible when a child can change the behavior of people around them.