Starting Position: Begin by simply standing with dumbbells in your hands with the back of your hands facing away from your body. (all-about-arm-exercises.com)
Proper form: Holding dumbbell in each hand with palms facing your torso, bend at the waist and bring your torso forward. (fitnessandpower.com)
Stand with legs slightly wider than hip - width, a 5 - to 8 - pound dumbbell in each hand, elbows bent and palms up. (health.com)