Angelina Jolie has one of the most iconic pair of lips in the business: full and sensual with a perma-pout top lip. It's this 'kiss' lip expression that she's mainly known for, but when she smiles she engages in a whole different form of body language messaging.

Although her smile retains a softened lip expression, the top lip narrows while the bottom lip becomes more prominent and noticeable.

This creates a smile that is less about sex and more about a nurturing sense of warmth and friendliness.