Shake hands at the first meeting.
Knock before entering someone's house.
Don't make loud noise in the public
Be punctual when invited.It's better to bring a gift that shouldn't be too expensive.
英语翻译1、初次见面要握手2、进别人家里时一定要敲门3、在公共场合不要大声喧哗4、被邀请做客时一定要准时,最好带一份礼物