Addressing People
* Use last names with people you do not know: Address people using their title (Mr, Ms, Dr) and their last names.
对不认识的人要称呼他们的姓：用他们的头衔（先生、女士、博士等）加上他们的姓。
* Always use "Ms" when addressing women: It is important to use "Ms" when addressing a woman. Only use "Mrs" when the woman has asked you to do so!
称呼女性的时候通常用“Ms”：称呼女性的时候用“Ms”，这很重要。如果对方要求你称呼“Mrs” 那再照办好了。
* Many Americans prefer first names: Americans often prefer using first names, even when dealing with people in very different positions. Americans will generally say, "Call me Tom." and then expect you to remain on a first name basis.
很多人喜欢被叫名字：美国人通常喜欢用他们的名字，即使是和身份非常不同的人打交道。他们通常会说，“叫我Tom”，然后真的希望你用他们的名字来称呼他们（不是客气的哦）。
* Americans prefer informal: In general, Americans prefer informal greetings and using first names or nicknames when speaking with colleagues and acquaintances.
美国人不拘小节：通常情况下，美国人喜欢非正式的问候，提到他们的同事或者使用名字或者熟人的时候喜欢用昵称。