When the punch makes contact with the metal (3003 0.063 sheet in this case), you carefully press the pedal and the punch steps through the metal. Stop pressing the pedal once the punch goes all the way through with a bang. Then press the other side of the pedal to lift the punch and take out the sheet and cutout. You can see a video of the punch in action at http://gallery.me.com/rlborger
Scroll to the bottom of the pages where the videos are located.