In this lesson, the coach demonstrates the "Three Across" drill, designed to enhance forehand accuracy and body positioning. The drill involves three players hitting forehands in a sequence, with a focus on the "high five" position and maintaining proper racket angles. The coach emphasizes the importance of consistency, accountability, and simplifying feedback for younger players, such as using easy-to-remember cues like "high five" and "bottom part of your C." With multiple stations set up, the drill promotes continuous activity, ensuring that all players remain engaged while refining their skills.