@@warshipsatin8764 yeah this happens to a lot of people, the only way to change it is to put yourself out there (i say this as an introvert myself lol)
If you've seen any other interviews with Rivers, he's the same way. He's very introverted and shy and doesn't say or do much. He could be high but I doubt it. He's publicly stated that he doesn't like drinking. I'm not sure what his stance on pot is.
They are stoned here. They have to be. I dont mean that based on anything they are saying, I mean it based on the way Rivers moves his head. I know it sounds strange but if you've ever smoked pot then you should have known someone who is exactly like this when they are stoned or are like this yourselves. You know, the relaxation alternating with jerky bits of nervousness.