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.