What are the different types of dimples? Discover the various places where dimples can form in the body and find out if these ...

Paired up with varying vocal tones and body language, understanding the different smiles can reveal ... is considered the most authentic type of smile associated with human behavior.

Humans can produce thousands of distinct facial expressions – including 19 different types of smile, according to research by the American psychologist Paul Ekman. However, only one of these is ...