It sounds as though he is listening only until he hears a word he has some prepared speech for, and he just seizes on that and shuts down listening until he spews out his speech, which is generally over the allowed time. That’s not a guy that listens and comprehends what is being said to him. That’s not good.
Are you aware he’s known to have an audiographic memory? He listens to the totality of what’s being said with the ability to recite it back verbatim. He’s demonstrated this many times. You can probably find confirmation of this if you do a search.
Geez... I wish you guys would be more specific, because I can't tell who you are talking about.
I know plenty of people who act exactly the same way, every minute of their life.