The Classification of Smile Patterns
When it comes to expressing emotions, members of widely different cultures have much in common. If people from various countries are shown a photograph of a happy, smiling face they usually agree in their interpretation. They also tend to concur over disgust, surprise, sadness, anger, fear and contempt. Such findings imply that beneath all the cultural complexity of mankind, there is a core of basic emotional expression that is understood all over the world. As best said by Darwin, it appears that we all smile in the same language.