They are so involved physically, they are physically reacting to what he is saying, which is actually fantastic, because then you know you have the audience in your hand.
إنهم مندمجين بأجسادهم تمامًا. إنهم يستجيبون جسديًا لما يقوله، وهو شيء رائع حقًا، لأنك تعرف وقتها أن الجمهور بين يديك.