Dachuan is a foreign student from the United States. He came to China to study Chinese. His new friend Wang Jun went to pick him up in the airport. They are meeting for the first time.

Dialogue One

nǐ hǎo dà chuān
你 好, 大  川!
Hi, Dachuan!
nǐ hǎo
你 好!

Dialogue Two

wáng jūn nǐ hǎo ma
王  军, 你 好 吗?
How are you, Wang Jun?
wǒ hěn hǎo  nǐ ne
我  很  好, 你 呢?
I'm fine. And you?
wǒ yě hěn hǎo nǐ hǎo dà chuān
我 也  很  好。 你 好, 大  川!
I am fine too. Hi, Dachuan!
nǐ hǎo
你 好!

Explanations of difficult points

It is an everyday greeting and is used at any time, on any occasion and by a person of any social status. The reply should also be "你好"(nǐ hǎo).

It is a daily greeting and is usually used between acquaintances. The answer would often be "我很好"(wǒ hěn hǎo, I'm very well.).

Although "很"(hěn) generally means "very", it is not used in exactly the same way as in English. It's often used before an adjective. "很" is a very commonly used adverb. Sometimes "很" does not exactly mean the degree is quite high when it's used before an adjective.

4.吗 and 呢
"吗"(ma) and "呢"(ne) are modal particles. Generally speaking, it's used at the end of an interrogative sentence.