How's your time spent in the United States ?   Well , pretty good .   I'm glad to hear that . What impressed you most ?   Well , the cultural differences impressed me most .   You mean we Chinese think differently from the Americans ?   That's right , quite different . One day one of my American friend looked pale , so I asked him whether he was sick or not . But he was reluctant to answer my question .   That's weird .   And what's more , when he told me he had caught a cold for several days , I suggested him to go to the hospital as soon as possible .   You really cared about your friend .   Sure I am . But he responded by saying'what do you mean ? ' .   I'm confused . Why did he say that ?   I felt the same at first . Later he told me that I'd better not give him any suggestions when he was sick . Offering unsolicited help or advice is like showing sympathy to the weak or the poor . But back in China , helping others is always regarded being kind .   Absolutely . Now I understand why he responded that way . 