1.First Keep Your Laptop Screen Straight.
2.Move Yourself 3-4 Feet Away From Laptop.
3.Move Your Right Wrist In Acesding or Descending Manner , You Will See A Red Dot.
4.Now Press Play Button And Keep Laptop 3-4 Feet Away.
5.The Red Paddle Is Your Paddle Which Will Move As Per Your Right Wrist.