This useful instruction will teach you to juggle.
If this is your idea of what juggling is you are wrong. This is not juggling.

You can say that you can juggle 2 balls only after you successfully do something like this.

These exercises will teach you to juggle.
One ball exercise:
You should start with one ball (it can be an orange, apple or any other round object). Stand straight with your feet shoulders width apart. Bend your hands in elbows with your palms upward. Your hands should be parallel to the floor. Take a ball in one hand and throw it from hand to hand about eye level.

Two ball exercise:
Take a ball in each hand. First toss the ball in your right hand and when it reaches the highest point in its arch throw your second ball from your left hand to your right. Catch the first ball with your left hand and then catch the second ball with your right hand. Pause. Do the same exercise, but start with your left hand instead of your right.

When you get more skilled, you’ll be able to do this exercise without a pause.

Three ball exercise:
Take two balls in your right hand and one ball in your left hand. Throw one of the balls from your right hand to your left, and toss the ball in your left hand just as you did in the exercise with the two balls. When this ball reaches its highest point in its arch throw the second ball from your right hand to your left. Now you will have two balls in your left hand and one ball in your right hand.Do the same exercise, except start with your left hand instead of your right.

Now you are ready to juggle. You just need more practice before you can become a professional.