Move and dance!
Because sometimes when we're just reading and we're focusing on the copy, we're not really physicating or moving our bodies. We're simply putting all of that energy into our voice in order to form the words. You want to dissipate that energy, make it sound more natural. So like an ebb and a flow, a fast and a slow, a lot of times you can use your hands like I'm using right now.
When we're in a conversation with other people we naturally talk with our hands, we have body language, and we move around! The same should be true when you go into the booth. You have to be physical with your body, even though nobody will actually see you, in order to be believable!
