Prepare the appropriate weight matching your fitness level. Take a shoulder-width stance and grab the barbell using an overhand grip at shoulderwidth. Firm up your torso with the pelvis in a neutral position.
From the starting position do the motion by contracting the upper trapezius muscles, elevating the shoulders (lifting arms upwards). Complete the upward motion and exhale andreturn to the starting position and inhale.Do the required number of repetitions.
Watch for the correct starting position. Fix the torso muscles and position of the pelvis so as to avoid lumbodorsal swayback and undesired backwards bending. Grab the barbell evenly on both sides.
Choose an appropriate weight matching your fitness level. Exercise in front of a mirror to make sure you are using the correct technique.