For learning about non-verbal language, make us cautions behavior and expression in various form of more self. Include the expression to foreigners who do not understand about the manners and custom of Thai people. May cause us not understand when to communicate with each other, or even some Thai people that have a little about manners. Foreigners can be learned from this video. When meet this situation, they will understand that what behavior should be done or what behavior should not be done, and why should be not doing. When we have the opportunity to meet foreigners, we can teach the foreigners wai to show greeting, because wai is good manner for Thai people.