Find a good flat spot to learn this trick. If you are inexperienced in skateboarding, you will want to practice in a place where the board will stand in one place (not roll forward or backward).
If you're afraid of falling, you can start by practicing on grass or even carpet.

Stand with your feet on the board. Place your front foot near the middle of the board (about 5 cm from the bolts). Place the back foot on the toe (tail) of the skateboard.
The front foot should be completely on the skateboard just behind the front bolts.
The cushion of the foot that stands behind you should be in line with the center of the board. This means that your heel should bounce off the surface of the skateboard.
Both feet should look clearly straight. Do not place either of them at an angle. Bend your knees. You will need to bend your knees so that you can push up on your tail and bounce. Make a teeter-totter flick. Push sharply and hard on the teeter board with your back foot.
As a result of the push you create by pushing down on the skateboard's teeter-totter, the board will hit the ground. This will create a strong upward momentum on the other end as the skateboard bounces.
Make the jump. Immediately after pushing down on the teeter-totter, straighten your legs to jump into the air. Allow your front leg to slide sideways along the board as the front end of the skateboard bounces into the air.
The friction of your foot against the hard surface of the board will help pull it up with your body. Level off. Lift your back foot up and use your feet to level the board under you when you reach the highest point of the jump. You may need to push lightly on the board with your front foot to line it up with your shoulders. Land. As you descend, pull your feet toward the ground, keeping your knees bent to cushion the impact when you land.
It is important to keep your knees bent to avoid knee injuries and to keep control of the board.

Work on the push. Determining the right amount of force to push on the teeter-totter to get a bounce is one of the most tricky parts of learning this trick.
You need to push hard and fast enough to not only lift the front end of the board, but to hit the teeter-totter to the ground with enough force to make the skate bounce off the ground. [
The harder you hit the board against the ground, the higher it will bounce. That said, when you're just starting to learn, maintaining control is more important than jumping high. Experiment and try pushing with different strengths before you get to the point where you can make a snap while maintaining control of the board, and then work on increasing your jump height.

Work on gliding. It's also hard to do a foot glide that results in the board pulling up with you when you make the jump and guides the skateboard where you want it to go. To learn, you will need to go through a lot of trial and error.
You'll need to relax your front foot enough to slightly unclench your ankle. You may want to tense it up at first, but you will need to learn to resist that temptation.
In order to maintain control of your skateboard, you need to slide the edge of your sneaker across the board until your foot reaches as far as the front edge of the skateboard.

Work on the timing of the trick. Another challenge in performing this trick is timing it correctly. Even though you need to perform all of the steps in Part 1 in order, you will need to do them very quickly in a split second.
In particular, the click and jump need to be done almost simultaneously and in one motion. Proper timing solves everything here, and only through practice can you learn it.

Work on the landing. Finally, landing without falling off the board can be very difficult. The key is to keep your knees bent and align the board with your body before landing.
It's ideal if you land on four wheels at the same time.
Keep your shoulders aligned throughout the jump. Don't be tempted to lean forward while performing the maneuver, as you may fall in front of the nose of the skateboard when you land.

Be patient. As with any trick, it may take you some time to learn it, and you may find it difficult, especially if you haven't skateboarded in a while.
Don't worry about the height of your jump when you first start learning. Focus on learning the execution technique first.
Once you get good at learning the trick on the go, start jumping over small objects and gradually change to larger ones.