A smile is a sign of friendliness, understanding, and caring. It is easily recognized and can be used throughout the world to mean the same thing to everyone. A smile can be used to show someone that you mean no harm, it can also be used to create peace. When you walk into a room and smile, people are comforted by you, regardless of your race, religion, or social status. A frown is used in the same way as a smile, however, a frown can indicate disappointment, anger, or sadness. A person's tone of voice is another type of communication. When a person is yelling, regardless of the language they are using, it makes one think that the person is ang When someone talks quietly, it is obvious that they are peaceful