Attitude and social understanding are very different in Japan, South Korea and China. Japan as quiet and very polite, where there is nearly no talking on trains or undergrounds and people was always concerned about you. South Korea was always using their mobile phone, and did not care about bumping into a child or others (do not say sorry). In China there are a lot of noise everywhere. People are shouting all the time, but people seems to care when they bump into each other.