This Video, #4, describes the positioning of the feet and body in order to volley the ball with the instep. As you will realize as you view the video, the main difference with the instep volley and the inside of the foot volley is the angle at which your kicking foot is pointing.. You will learn where each foot, kicking and non-kicking, should be positioned and much more.
Coach Rashad Hyacenth will guide you through the basic volleying technique:
#4 Instep Volleying technique