This video in the Fitness category will show you how to do squats correctly. This exercise is meant for the legs. The easiest way to do this is to sit down and stand up using a bench. The bench should be about knee height. Technically the line from the ankle to the knee and the line from the hip to the shoulder should be parallel as you go up and down. The legs should be about one and a half feet apart. This is the body weight squat. As you progress, you can do the dumbbell squat. The video goes on to explain this and other forms of squat.