If I had even the tiniest scrap of advice to give to a young actor who was figuring out how to audition, I would say don't memorize the script The reality about auditions is that 98 percent of the results has to do with what you are, not with what you did in the audition.
You're always fighting the contradiction between the supposed intimacy of a two-person conversation and the blunt reality that you're trying to sell the play to people who are sitting maybe too far away from you.
When I was a child, I did always feel that people were hiding things, and that they weren't expressing their true feelings. When adults are too complicated, and cover their emotions with layers of well-intentioned subterfuge, the child isn't seeing reality clearly enough and gets upset.