You should do as everyone does? I stayed abroad for a year and I felt the difference of culture between the US and Japan. In the US, when I walked on the street and met someone walking down the street, we looked at our faces, smiled and said "Hello". It was not always but mostly always. I felt it was good for me to make me feel good and positive. So I thought I would try it when I go back to Japan! However, in Japan, we don't look at the face of people who we don't know each other. No smiling and no saying hello. Yes, this is the culture of Japan. It is not a good thing and also not a bad thing. Just after moving back to Japan, I felt a little sad when I couldn't do this, but I also thought if I said hello to everyone I met on the street, I would be seen as a strange guy because of the culture. Every country has their cultures, and visitors enjoy the difference of cultures. So "when in Rome, do as Romans do" might be an one of good thoughts to live where you are. I think that it's difficult to tell you what I think about. So you might not understand me. But if you read this notebook entry and give me comments or corrections, I would appreciate it!