I find it interesting when dealing with adults, especially adults in any form of professional capacity. When we were kids, our Moms would butt in to a situation and say “what do you say?” when they wanted us to say thank you for something. This would also be a code phrase when they wanted us to say excuse me, I’m sorry, or some other form of basic courtesy to another human being. Simply said, they were teaching us to acknowledge a situation.
When someone stops to let us cross the street, we wave and smile in acknowledgement for their yielding. When we walk into a place of business and someone employed there motions to us that they will be with us momentarily, we nod our head or say thank you in acknowledgement. When someone sends us a text or an email with some sort of information or direction, we respond in some fashion to acknowledge the message. When someone asks if we are ready, or if we are OK, we might give a thumbs up as an acknowledgement as well.
I can only come up with 3 reasons why someone wouldn’t acknowledge another person. First, it is plausible that they feel superior and find no need to express the common courtesy to someone they feel is socially beneath them. Second, they are intimidated with the message or the person, so they feel avoiding it is the best possible solution, which we all know never ends well. Or third, their Mom never taught them the importance of a simple acknowledgement.