To use a squat rack, adjust the barbell height, stand underneath it, hold the bar with a comfortable grip, and squat down and stand up to work your leg muscles.

To use a Smith machine, stand inside, adjust the bar height, grab the bar, and perform exercises like squats or bench presses using the fixed bar for stability.

To use an elliptical machine, step on, hold the handles, adjust settings as needed, and move your legs and arms in a fluid motion for a low-impact, full-body cardio workout.

To use a cable crossover machine, stand in the center, adjust the handles to desired height, grab the handles, and pull them towards the center of your body, engaging multiple muscle groups for a full-body workout.

To use a stair stepper, step on, hold the handles if necessary, and start stepping up and down to mimic climbing stairs, delivering a challenging and effective workout for your lower body.