Waving your hand is a friendly way to say hello or goodbye without words.
A little wave can travel across a room. It tells someone, 'I see you, hi!'
More facts about Greetings
In Vietnam, people say 'xin chào' to say hello in a friendly way.
A friendly hello can make someone's whole day feel brighter.
In many places, people shake hands to say hello when they meet.
In France, friends often greet each other with a little kiss on the cheek.
People around the world say 'hello' in thousands of different languages!