Sit in the front seat of the Piper Cub. Look at the six instrument steam gauge panel on the dash of the cockpit. Grab the stick between your legs and use your other hand to find the small lever to the left of the seat.
Grip the lever with the left hand. Push the button on the top of the lever to release the lever's lock. This is the flap lever. Pull one full click to increase the flaps, thus increasing drag on the aircraft. To reduce drag once the flaps have been fully employed, push the lever one full click forward.
Look out the right and left windows to visually inspect that the flaps went up one full notch. In the Piper Cub, one notch, either up or down, with the flap lever is equal to 10 degrees of flaps or drag. To continue to reduce drag, push the lever one more full notch forward. Do this until the flaps are flush with the wings. This position is the no-flaps setting, where there is the least amount of drag on the aircraft.