Stand in front of the Smith Machine bar with your feet directly under the bar. Grip the bar at no more than shoulder-width apart and get your back straight and ready yourself for the initial shrug. This is your starting position.
Shrug/lift the bar with your traps and shoulders only; your arms are nothing but "attachments" in this movement. Shrug all the way until you feel a good "squeeze" in your traps and hold at the top for a fraction of a second. Then, release the weight back down to the starting position and repeat the entire movement for the desired or prescribed number of repetitions.
Perform this exercise in a smooth and fluid motion
Don't release the weight back down too fast as this may result in shoulder injury; always be in full control of the weight
SPECIAL NOTES & LEVEL of DIFFICULTY VARIATIONS
To increase the level of difficulty, slow down the movement or increase the weight.