Ride from the long side onto center-line. Leg yield to the wall. Allow your horse to stretch until you reach the corner. Collect, turn onto the center-line, and leg yield to the wall.
Repeat: 4 x long-side per direction and per gait.
Appropriate Gaits: Walk, Trot
Optional Focus: Neck as straight as possible during leg yields.
Optional Focus: Influence each step individually with your aids.