A stunning grin is everything. It permits a person's happiness to show from inside and illuminates the entire face. It quickly lifts a person's spirits and spreads happiness to others around them. People smile for a variety of reasons during the course of their life. But, it is the expression on someone's face when they realize how wonderful life is that makes all the difference. A smile is an irresistible thing. It can be simply radiant or completely dazzling. It can be a natural reaction to something funny or interesting that people see, or it can be designed as an act. However, no matter what the reason, a smile is one of the most attractive things about us humans. There are many factors that determine how beautiful you look. Your skin color, your eyes size, the shape of your face... but also the state of your teeth and gums have something to do with it. A healthy-looking mouth is important because it allows you to express yourself through words and actions. And since a smile is part of every conversation, being able to hold one up even if you're not feeling very happy or comfortable in what you're saying makes all the difference when trying to communicate with other people. People usually think that beauty is just about looking good. But beyond physical appearances, there are many other qualities that make some people more beautiful than others. It's possible to be extremely intelligent and still lack confidence.