There’s an amazing diversity of greeting customs around the world. In Tibet sticking out your tongue can be a way of welcoming people. In New Zealand, Maori greet each other by touching noses. Ethiopian men touch shoulders, and in the Democratic Republic of Congo, male friends touch foreheads. In many Asian countries, people bow to each other when meeting. And in some European countries, as well as Arab countries, hugs or kisses on the cheek are more the norm.
Adapted from image by: Donkey Hotey (CC BY 2.0)