hi

hey

A friendly call you use to get someone to look at you, or to say hello to a friend.

wave

To move your hand in the air, often to say hello or goodbye.

friend

A person you know well and like, who is not in your family.

morning

The early part of the day, from when the sun comes up until the middle of the day.

smile

To turn up the corners of your mouth to show you are happy or friendly.

yo

A very informal way of saying hello, used mostly between friends.

bye

A short, friendly word you say to someone when you leave or when they leave.

welcome

A warm word you say to someone who has just arrived, to show you are glad they are here.