During sotu address there is a moment where Potus is about to say something. His open palm is up in the air. There is a short silence. The camera switches to Mike Pompeo. They guy is full of anticipation what word Potus will be using. This was a typical non rehearsed off the cuff impromptu.  And when Potus finishes his sentence, you see Mike Pompeo, relieved Potus worded his sentence correct, without giving away too much.  This is typical Trump. He is playful, when he can, and brings the fun factor to a new level.