How to treat the bus driver's courtesy in front of the zebra crossing, Hanfu girl bowed and thanked him, and the driver's big brother quickly got up and returned the gift with his fist?

I think this reflects the word "Li" in China traditional culture.

The driver's big brother's "comity" and the Hanfu girl's "thank you" are all manifestations of personal cultivation. Praise their behavior. Civilized society cannot lack etiquette, because etiquette embodies the basic humanistic quality. China is known as the land of etiquette, but now many ancient etiquette have been lost. I hope that the excellent etiquette of Chinese tradition can continue to be carried forward and passed down.