You can either make a fist with one hand and wrap the other around it (the ball method), or you can bend one thumb down to its palm, and rest it on the other hand (the cup method), thus cupping it with the other hand. If you’re using the cup method, then your thumbs should be parallel with each other, and your four fingers on each hand will be parallel with each other as well. Remember to keep your elbows locked and your knees bent.
If you don’t need the ball to go back, swing your arms or bring them above your shoulders. If you do need it to go back, carefully swing your arms backward, as much as is needed.
You should drop the shoulder and put the weight on the ball that is moving towards the target. Use your platform to help you aim the ball.
Once you release the ball, separate your hands, but still keep them half a foot or so apart, anticipating the ball’s next movement and get ready to hit the volleyball.