根据语境，填写适当的词语或句子补全对话。
A: What are people 1 to do when they meet for the first time in your country?
B: Well. In Brazil, friends 2 each other.
A: 3 ?
B: In Japan, we should 4 to each other.
A: How about in China, Sam?
B: We often 5 .
C&D: Well. People in different countries greet each other in different ways.
B: Yes, it is fun.
