Authors:

I have seen many people, who while you are speaking to them, instead, of looking at, and attending to you, fix their eyes upon the ceiling, or some other part of the room, look out of the window, play with a dog, twirl their snuff-box, or pick their nose. Nothing discovers a little, futile, frivolous mind more than this, and nothing is so offensively ill-bred.

"Letters to His Son on the Art of Becoming a Man of the World and a Gentleman". Book by Lord Chesterfield, 1774.
I have seen many people, who while you are speaking to them, instead, of looking at, and attending to you, fix their eyes upon the ceiling, or some other part of the room, look out of the window, play with a dog, twirl