Have a sense of public morality.

Behaviors lacking public morality can affect others and cause inconvenience.
Behaviors lacking public morality can harm the environment.
Having a sense of public morality can make the environment cleaner.
Having a sense of public morality can make people's relationships friendlier.
Having a sense of public morality can lead to a more harmonious society.
We should strive to be individuals with public morality.
Take care of public property and do not damage it.
Do not scribble or vandalize.
Take care of flowers, plants, and trees; do not pick flowers from the park.
Maintain hygiene and do not litter.
Keep quiet in the library.
Do not cut in line while shopping.
Be careful while walking; do not block the way and do not bump into people.
After eating in a café, return your own dishes.
On the bus, give up your seat for those in need.
Take care of books; do not tear them or write on them.