Why do different cultures have unique greetings and gestures?

Different cultures have unique greetings and gestures because people in different places learn special ways to say hello from their families and friends.

Imagine you live in a house where everyone waves when they see each other. That’s your way of saying "hi." But if someone else lives in a house where people hug or even bow, that's their way of saying "hi."

Think of greetings like a family secret passed down through generations, just like how some families have special recipes for cookies. In some places, people might press their palms together and say “Namaste,” while in others, they might shake hands or even kiss on the cheek.

When you grow up with a certain way of saying hello, it becomes comfortable and familiar, like your favorite blanket. That’s why when people from different places meet, they bring their own special ways, just like bringing different kinds of toys to play with each other!

So next time someone says "hello" in a new way, you can think of it as a fun new game they're playing with you!