Gift-giving is a kind of culture. The Chinese people have held to the idea that “courtesy demands reciprocity” since ancient times. Nowadays, gift-giving has become an indispensable part of interpersonal communication, and a kind of important social etiquette. When people visit relatives or friends, they give some gifts in order to improve friendship. Of course, what matters most is not the value of the gift but rather the thoughtfulness of the gift-giver. When giving gifts, one had better learn in advance about the social status, hobbies, and ethnic customs of the gift-receiver so as to avoid undesirable effects for giving inappropriate gifts. Traditionally, the gift-receiver is not supposed to open the gift box to look at the gift in front of the gift-giver. Nevertheless, with the increasing cultural exchanges between China and the West, it is now becoming a custom to look at the gift in front of the gift-giver.(本题20.0分)