why cant they sit still?

So I’m watching this:
https://youtu.be/J4QnwV-qk5k

I like Kelly, but she, like all talk show hosts work to hard. Why can’t they just sit still? I’m wondering, are they being instructed to over do the emotions. Look at Tom in this situation. He’s calm.

I thought wouldn’t it be nice to have a talk show that’s calm. Just sit still and listen. Listen to what your guest is saying. You don’t always have to have a knee jerk reaction and overact your response. Breathe more, talk and move less. That’s what I want to do.