Be seated in upright position on a chair or bench with legs apart and a dumbbell in your right arm. Bend slightly, so that you can comfortably place your right elbow on right thigh. Now take your right lower arm down, so that it also rests on the right thigh. Hold a dumbbell in your right hand, facing towards you. To maintain a balance while you perform the exercise, you will need to place the left hand on your left knee.