Finger tips are little rubber plugs in a bowling ball. When your fingers come out your thumb comes out first thus creating spin. When putting your hands in a finger tip ball only put your top 2 fingers in to your fist knuckle. Now tilt the ball so that your thumb face 10 o'clock. Throw like it is a normal ball but of to the right of the pins more because it will curve in and hit the front pin and the one next to it (also known as the pocket).