Narrator Listen to part of a conversation between a student and a profes

Mary  Hi, Professor.
Professor  Hi, Mary. What can I do for you?
Mary  Ur... in class you talked about the advice on customs and protocol in many countries. am still puzzled by the way people do things here in America. Urn...for example, what should we say to the bereaved?
Professor  You need not to say too many words, be solemn and respectful most of the time. A hug is all that is needed.
Mary  How should one sit correctly at the table?
Professor  The basic rule is to be natural, keep your posture straight and never rest your elbows on the table before or during dinner.
Mary  Then, how should we set the table if we have guests?
Professor  Centerpieces should be low so as not to interrupt the line of sight of the guests. The table should be set according to the style of food you’re serving and the degree of formality.
Mary  Well, what precautions should be kept in mind when we pay a social call?
Professor  You should be sensitive to the routines of your friends so that your visit does not become an imposition.
Mary  How do we say good-bye?
Professor  When we say good-bye, be brief and natural.
Mary  Why is it important to be punctual?
Professor  The lack of punctuality implies that we do not have consideration for other people’s time and displays selfish behavior. If you arrive late to a dinner, it can be a great inconvenience for your host.
Mary  What are the usual practices for giving and receiving presents?
Professor  Giving a present is a sign of affection, gratitude, or friendship. The present should be unique yet appropriate and should fall within your financial means. A distinction should be made between the gifts we give to friends and those we give to professional colleagues.
Mary  How do you converse properly?
Professor  When talking to someone, you should look at him or her straight in the eyes. Speak in a language that will be understood by everyone present. Remember: a good conversationalist is one that makes those around him feel comfortable and eager to engage in conversation.
Mary  Leaving
    Oh, I think I’m clear on that now. Thank you. Bye!
Professor  My pleasure! Bye!