How right say in Chinese "Hello" or "Hi"? How right say it with friends?
Please, answer.

Question

Answer

Intimate friend: hi（嗨） or their names
Normal friend:你好，早上好，中午好，下午好

Answer

In fact we usually say "HI" or "Hello" between the friends. 你好(nǐ hǎo) aways use in the first meet.

Answer

其实我们就说“嗨（Hi）”，尤其在朋友之间很常用的（familiar friends），
“你好”的话显得正式，比较适合初次见面。

Answer

just say hi with your friends
你好 is very official and formal

Answer

你好！