The Chinese always ask "Have you eaten yet?" when friends meet each other in the street.Some of them also say:where are you going?or what are you going to do? and so on. Old friends come across one day,they may say"Long time no see,what are you doing recently?" They also ask about the recent situations of the family,just like"How did your son do on his school work?"if they are familiar with each other.In most situations,Chinese also greet others with the expression as simple as "Good morning" and " Good afternoon".No matter how did the Chinese make their greetings in the daily life,they promote their friendship,that's enough.希望能帮到你 ^^