Stride forward with a quartet of steps: right, left, right, then left.
Take four steps in sequence: first right, then left, followed by right and left again.
Move ahead with four strides, starting right, then left, right once more, and ending on left.
Proceed by walking four steps in this order: right, left, right, left.
Advance with a set of four moves: right foot, left foot, right foot, left foot.
