The western form of greeting is extending one's hand to shake the hand of another person. but, this act may be considered unacceptable and unethical in other societies in asia and africa where people greet each other not by shaking hands but instead by bowing, touching the palm to the forehead or kissing both cheeks. the above instance serves as an example of:

respect

Explanation:

Greetings or some body gestures are good practices that people uses to greet others. These practices also meant to show respect to others when people meet.

People in different region or countries shows different ways to greet people and shows a sign of respect to others.

In the West people greet by hand shaking each other. In India , people greet by saying "namaste" or by touching the palm to the forehead.

In China, people greet others by bowing or nodding.

In Korea, people greet by bowing and by shaking hands.

Thus different cultures have different  ways of showing respects and greetings.

Thus the answer is "respect".

well 1 they have there leader that controls them