G-day mate
The adjective to courtesy is courteous
neither you show up on time as a common courtesy!
Yes, the noun 'courtesy' is an abstract noun, a word for a behavior or an attitude.
David's mother taught him that holding the door open for the person behind you is a common courtesy. Courtesy is a noun that means 'good manners.'
Using courtesy and common sense at all times.
Such a person is called a boor.
Using courtesy and common sense at all times
The motto of Northwest School is 'Courtesy and Common Sense'.
Using courtesy and common sense at all times
Using courtesy and common sense at all times
Using courtesy and common sense at all times
Using courtesy and common sense at all times