1. Body Language
Smile
When you look at some one, you can smile to her. This is a friendly behavior.
To make a smile appear on your face
Shake hands
When you first time to know other people, you should hands with them, this is a manners behavior.

2. Body Language
Stand up
When you meet your boss or some customer, you should stand up.
To be on your feet
To wave one’s hand
When you look at some one for long distance, you can wave your hand to her/him.

3. Body Language
A salute
When you look at an elder, you saluted with them.
To express respect and admiration for someone
To nod
If you look at some person, you can nod to her/him in a friendly fashion.
To move your head down and up once to greet someone or give them a sign to do something