http://napatsakornohm123.blogspot.com/2017/04/1-greeting.html?m=1
Greeting and accepting greetings to build interpersonal relationships.
for example
1.Greeting someone who has known before
2.Greetings at different times
3. Greeting a person when meeting for the first time
4.Greetings when meeting in the afternoon
5.Greetings after long time no see
