To execute a Step-Up Curl to Press, hold a dumbbell in each hand with your arms by your sides, standing in front of a sturdy bench or platform. Step onto the bench with one foot, driving through the heel to lift your body up while simultaneously performing a bicep curl. Once fully standing, immediately press the dumbbells overhead into a shoulder press, then lower them back down and return to the starting position, completing the movement for the desired number of repetitions on each leg to target the lower body, biceps, and shoulders effectively.