Learning how to catch the ball on your neck or do the neck stall as some people prefer to call it is a cool trick that can be learned fast. Keep in mind that it doesn’t have to be perfect directly. Instead, take your time and practice regularly and often. Soon or later you will become a master on the neck stall, I promise.
1) Find a free area where no one while disturb you. Your backyard is prefect but other places will be fine too. Once you get familiar with this trick you will be able to perform it inside (for example; your room). However, I would recommend you to practice outside in the beginning as you don’t want to break things :-)
2) Now, pop the ball at the right height, which is usually 20 inches about your head. The height need to be enough so that you can get your head under the ball.
3) As the ball is flying down you should duck your head under it.
4) If you’ve performed the neck stall properly you should be able to catch the ball smoothly on your neck.
Watch how this guy performs the neck stall trick
For a more compressive description on how to do the neck stall trick check out this article. And one more thing; good luck with your training.