Japanese culture dictates their citizens to be very polite. They value respect and they show gratitude in the simplest ways. Â May it be verbal or non verbal. They greet each other with a bow. Sometimes the deeper the bow the more respect the other person gives to the other (If they are senior to you, a teacher, your grandparents) compared to bowing to a colleague or a friend.
There’s no debate about politeness in Japanese culture.
Videos online show just how polite they are in a non verbal manner. When you are in the freeway/high way with them and a vehicle will merge into your lane and you let them, they will say thank you by pushing the hazard button for 2 seconds.
Another video of an Australlian driver how loves driving in Japan because of their politeness:
How about in our country? Do we have non verbal ways to tell drivers a message?