1.
Start by learning to juggle two balls in one hand. Start with your dominant hand. Your non-dominant hand should be empty; you will not use it. Hold two balls in your dominant hand and throw one in a small, in-depth looping motion. The loop should point towards the inside of your body.
Quickly throw 2. Ball up and catch the first one. Repeat the process by throwing and catching each ball in progression. The pattern of your throws will form a small loop.
2.
Learn step 1 with your non-dominant hand. This process is difficult and can feel very cumbersome at first. When you drop a ball, pick it up and try again. Get the best results by stopping to take short breaks during your practice and by giving yourself plenty of time to learn the four-ball pattern.
When you can juggle two balls in both the right and left hand for at least 15 to 20 throws without dropping, try juggling four balls together.
Throw balls in either a synchronized pattern or an offset pattern. For beginners, a staggered pattern may be easiest. Start by throwing a ball from you r dominant hand and immediately follow by throwing a ball from your non-dominant hand. Hold up the pattern by maintaining two-ball juggling loops in each hand. This way you can juggle four balls at the same time.
4.
To juggle four balls in a synchronized pattern, throw a ball from your right hand while throwing a ball from your left hand. Throw the remaining balls in your hands at the same time and take the first balls at the same time. Continue in this pattern, throwing and catching with both hands at the same time.
Juggling four balls is an advanced skill that you probably should not try until you can comfortably juggle three balls for many throws without stopping or dropping. The basic pattern for four-ball juggling differs from a three-ball pattern, where the balls cross paths with each throw. When juggling four balls, objects never cross paths unless you are juggling according to a variation on the basic pattern. Two balls stay in one hand and two balls stay in the other.
Source:danspela.com