In Japan People follow many rules in public places to keep surrounding clean and peacefull.
For Example:
・Do not talk loudly on the train and buses.
・Always throw trash in correct bin or take trash home if there is no bin.
・Stand in the line and wait for your turn and keep distance with the person ahead of you.
・Smoking is allowed only in designated smoking areas.
These small manners shows respect and make life comfortable for everyone