And the thing in question is – someone not making noises, gestures or giving short responses while you’re talking to indicate they’ve heard what you’ve said and are engaged in the conversation.
So, for eg, “Right, so I don’t know about you, but you know when you were a kid and you used to write a Christmas list?”
Other person: keeps watching you in silence with unbroken gaze, no change in body language, and no nod or “mm hmm” / “okay” / “yeah”
Is it just me or are these little markers just a standard feature of a conversation?!
Would you find it offputting if someone didn’t respond in some way to what you are saying to indicate they are listening and interested?
Why do I ask? Ohhh no reason 
