Write a few polite slogans.

slogans reminding people not to litter; Don't lose your face when littering

Remind people to be at the bus stop, and remind people to obey the order: everyone for me and I for everyone.

turn off the tap: don't let the tap cry for no reason

remind people to take care of their pets and let them be liked by everyone

remind people to keep quiet in the reading room: please be quiet for all of us.

Remind people to take care of flowers and plants: Grass smiles, please take a walk around.