"have a certain kind of air about oneself" meaning [closed]

Taken from the book titled "W is for Wasted" by Sue Grafton:

He had a courtly air about him.

I unfortunately can't seem to find any good explanation anywhere on the web. I also don't think this is related to the phrase, I'm trying comprehend.

This is a more detailed excerpt from the book:

He had a courtly air about him. Maybe it was the dress shirt or the hint of humor in his eyes. I thought he seemed surprisingly intelligent, and then I had to stop and correct myself.

Solution 1:

It simply means he gives the impression of possessing that attribute. In this case, he gives the impression of being courtly, as though courtliness were emanating from him into the atmosphere.