Here is a tutorial I have created to hopefully aid people in completing this trick. Most others I have seen miss out the vital part: When you flick the ball up with the Left Stick, you need to keep the Left Stick held forwards while you press the stick down. If you dont, and just move the stick forward, let it return to its original position, and then press it, IT WILL NOT WORK. Its not the greatest video, its hard to explain accurately. Steps to perform the Chest Flick: 1. Hold LT and tap RB to start Juggling. 2. Still holding LT and still tapping RB, move the Left Analogue Stick Forwards and keep it held forwards. 3. Still holding LT and still holding the Left Analogue Stick Forwards, press the Stick down (so it clicks). 4. Immediately start tapping the Right Analogue Stick. (Keeping the Left Stick held forwards and pressed down, and of course keeping LT held down.