What time of day are you communicating? If you're talking early in the morning? You might have to have a little more energy to keep people moving. Same thing after lunch when people are having that food coma experience. I taught high school many, many years ago and I don't think my principal liked me very much because she gave me freshmen right before lunch and right after lunch. And if you know anything about 1415 year old kids, they need lots of food and lots of social experience. So by the time my first class of freshmen. Came to me after 4 hours of class. They were dead tired, they could barely move, let alone think. Right after lunch, when my second batch joined me. They were amped up on their food, their caffeine, their friends. It was a frenzy in my classroom, and I had to teach them the same thing. How did I do it? I changed the way we approached the class. The class before lunch was highly collaborative. People were moving around lots of activities after lunch, a little more mellow. You must address the context, the timing, so your message can be.