On what occasions should you be polite?

I think polite is very important in our daily communication, especially in first impressions. For example, when you meet someone for the first time, you should be polite to show respect and it really reflect how people see Earth.

I think blindness is very important in most positions, especially in viewk41. when you meet someone at the first time, you should be polite because it reflects how another people see us another position is when you when you