单项选择题

Because South Africans are generally so bubbly (热情奔放的) and talkative, silence says a lot. They are polite as well and if you are (47) them, they, unlike the Americans they admire, will suffer through in silence. When the questions stop, consider it time to go — you’ve lost your audience. South Africans often use hand gestures in conversation but it is (48) and seen as a personal challenge to point at someone with your index finger (食指) wagging (摇动). The amount of hand movements a South African (49) while talking is a good indicator of the degree of (50) that individual has for a particular topic or proposal. It is also considered rude to talk with your (51) in your pockets.
South Africans use facial expressions to signal their interest or reactions to a speaker. It is a highly developed form of communication and a good indicator of whether or not you are hitting the mark. At a meeting South Africans will (52) glances at one another or at the boss to judge a reaction. (53) so much business is done on trust, eye contact is (54) , especially in the white community. Black African businessmen seem less hung up on that and are more into (55) contact. A warm handshake followed by an arm (56) the shoulder means you had a successful meeting.

47（）