Don't take it personally. This is because people value time highly, and they resent someone else "wasting" it beyond a certain appropriate point. Many new arrivals in the States will miss the opening exchanges of a business call, for example. They will miss the ritual interaction that goes with a welcoming cup of tea or coffee that may be a convention in their own country. They may miss leisurely business chats in a restaurant or coffee house. Normally, Americans do not assess their visitors in such relaxed surroundings over extended small talk; much less do they take them out for dinner, or around on the golf course while they develop a sense of trust. Since we generally assess and probe professionally rather than socially, we start talking business very quickly.