Start by standing with a mini band around your knees (slightly above or under). Your legs are approximately hip-width apart or slightly wider and your toes pointing forwards or slightly outwards. Arms can be crossed over the chest or placed on your hips or they can move along with the squat.
Squat down; move your hips back and bend your legs. Press your knees outwards against the resistance from the band to keep toes, ankles, knees, and hips aligned. Feel the tension in your thighs and buttocks. Push back up to standing and straighten your knees and hips.