Kind Americans

It seems that Americans are kind to strangers. Recently, I met some kind Americans in a row. When my friends and I were taking pictures in turn at a ballpark, a stranger came to us and offered to take a picture of us. Next day, when I was in a regional train to go to suburbs, I was checking a train map carefully because I was afraid that I had missed the station. Then, one of passengers came to me and asked where I was going to. Luckily enough, I had not missed the station. The other day, when I was riding my bike on my way home, I saw two people were pushing a car. Then, a guy who was walking a sidewalk noticed them and helped them.
I think Americans usually don't hesitate to help strangers likeJapanese do.