Adjust the height of the rings appropriate for your fitness level (the lower the rings the more difficult the exercise).
Position yourself hanging underneath the rings while holding in rings. Your body should be straight with your heels on the ground with your arms fully extended. This will be your starting position.
Begin by flexing the elbow, pulling your chest towards the rings. Retract your shoulder blades as you perform the movement.
Pause at the top of the motion, and return yourself to the start position.
Repeat for the desired number of repetitions.