This will affect how the cue ball will move after it makes contact with another one of the balls. Oftentimes, players may want to change the spin on the ball.
This only happens when you're breaking or when your opponent commits a foul. When you see arrow icons around the cue ball, this means you can click and drag on the ball to move it. Release the mouse button to take your shot. Move your mouse to aim your billiard cue, and click and drag to set your shot power. Want to try 8 Ball Pool with online multiplayer? Play it now.