I suspected they used the applause sign, or some other signal to the crowd the other day in his Denver town hall. The crowd literally started clapping when he obviously had lost his spot on the teleprompter and he was stumbling, then silent while searching for his place. The timing of the applause made no sense whatsoever.
DIamond Method” place four people around the crowd to start applause, laughter etc in the places you want. It’s a way of controlling the crowds response.