Set the pulleys at the lowest level of the cable machine and position a decline bench in the middle of the stand. The bench should be angled downward at roughly 30 degrees.
Grab a pulley in each hand and lay down on the bench with your feet hooked securely underneath the pads. With a slight bend in your elbows, extend them out to your sides to that your upper arms are parallel to the floor.
With your butt and shoulders firmly planted and hands facing in, press the cables upward in a circular arching motion until you feel a strong contraction in your pecs. Lower the cables back down following the same path until your upper arms are parallel to the floor, and repeat.