Answer:
You take the football and make sure your holding the laces correctly which is having at least two or more fingers between the laces and pointing to your target with the speed you want it to go. When you throw the ball let your fingers roll of the laces. It takes practice, but once you get the hang of it, it will become easier and easier.
Another way is space your hands out on the laces as much as you can and flick your wrist. It will feel very weird at first, but then you will find out it works very well!