It seems that Americans are more willing to help strangers than Chinese.
Once I walked on the street and tried to find my way to my hotel. I found that I was lost. So I stopped, took my map out and began searching for the right way. Then a lady came to me with a friendly smile. I wondered if I was in her way. Before I was about to stand aside (到旁边), the lady asked, "Do you need any help? I can show you the way." I was very surprised. In China, most people won't give you a hand unless you ask. I said yes to her. She carefully gave the directions to me. I was touched by her selfless behaviour and warm attitude (态度).
After experiencing many such things in the USA, I thought about the situation in China. My teacher in China told me that several years ago he travelled to another city by himself. After a whole day's hard work at a factory, he bought a pancake at a stall (货摊). But he later found that it was bad. The seller cheated (欺骗) him. Since then, he always checks the food he buys on the street. Even today we often see news that shows we don't trust strangers.
Chinese people are morevigilantto strangers because they are afraid to get hurt. But many American people believe that if you love others first, you will be loved. I think we should learn from this attitude and rebuild the trust among people.