HOW: Get set-up in a standing position holding two kettlebells in a front rack position. Be sure to keep your shoulders packed by squeezing your shoulder blades back and wrapping your triceps into your armpits. Try to keep your elbows under your wrists with your knuckles facing the ceiling. Perform a squat with good alignment and repeat.
FEEL: This should feel like a full body workout, with your legs driving the squat and your upper body working hard to keep your chest up and the kettlebells in position. Your shoulders and upper back especially will be working hard to maintain the position of the kettlebells.
COMPENSATION: Do not lose kettlebell position, do not bend at your wrists, do not bend excessively at your back. All rules regarding a good squat still apply