L.A.
Well unless it is story time, he may not be mature enough to sit and just listen. this still falls in the "normal" for his age.. His attention span is still in the 3 min to 4 minute range.
You can work with him about paying attention when someone calls his name. Just say, "John, look at me and listen to my words". Or "John, what were the words I just said?"
My husband said it used to drive his mother crazy that he did not look at his mother or at the book she was reading. But if she asked him what she had said, he could completely repeat it..
I think she is just mentioning, not expecting him to actually sit still for very long.