When he had begun actually being a guard, he had the same question. It didn't seem possible for a human being to just stand there and do absolutely nothing for hours on end. At first, his feet did get tired, but he got used to it over time, and simply thought about things that passed through his head as he stood there. "When you start out, your feet will hurt, but it stops over time." He was a little curious as to what words she didn't know or understand, and he might be able to help her since he had grown up and was given a proper education, and a bit more to understand the royals that their exceptional vocabulary. "What words didn't you understand? Since I am to be with you, I guess I could help you understand some to pass the time."