Stand up straight with the barbell loaded on your back (resting on your traps and shoulders). Your feet should be spread wide as you get ready for the initial side step. This is your starting position.
Lean down to one side all the way until your leg is almost at a 90 degree angle. Then, with that same leg push up as strong as you can and get back into the original starting position/stance. Then, do the same movement with your other leg and repeat entire movement on both sides for the desired or prescribed number of repetitions.
Perform this exercise in a smooth and fluid motion
Load the bar light for the first (warm-up) set until you get a hang of the mechanics of the movement
Don't do this exercise if you are a complete beginner
SPECIAL NOTES & LEVEL of DIFFICULTY VARIATIONS
To increase the level of difficulty, slow down the movement or increase the weight.