Professor Lucas Lepri continues demonstrating guard transitions, focusing on the opponent's reaction of basing their hand on the mat. He explains how to react when the opponent bases their hand to prevent the sweep, emphasizing hip adjustments and maintaining a low posture. Lepri shows how to use the opponent's hand placement to create opportunities for transitions, including using a "pit stop" technique to reposition the knee if the opponent defends. He emphasizes maintaining control and adjusting angles to create effective sweeps and maintain dominant positions.