It's simple... there is no secret technique that will have players juggling a soccer ball in no time. Sure there are some helpful tips, but the best way is repetition and practice.
It takes weeks, months, years sometimes to become good at soccer juggling but it is something that can be done anytime, anywhere with a ball.
As often as possible. No, I don't mean every practice all practice, but players should frequently be given a few minutes usually at the start, or end of a practice. I say this because it is fairly stagnant for the players.
You can start coaching how to juggle a soccer ball at any age, although I have found most kids start to see some success around 7-8 years old and up, as always dependant on ability.
I have seen people learn in a wide variety of ways, but I suggest using the most successful way I have come across for beginners is:
- Juggle in a sequence; foot — thigh — chest — head — repeat.
- Alternate feet; left-right-left-right.
- Catch or stall the ball on the top of their foot, then flick back up and juggle more.
- Have the player throw the ball up in the air and be expected to bring the ball down to the ground using the top of their foot so it doesn't bounce away.
- Have the player juggle then kick the ball in the air and bring down using top of their foot to the ground.
- Juggle with a partner.