Wanting to learn to jump higher is not all that unusual
. If you have played games like basketball or happen to leap over hurtles for track then you probably understand how much a good vertical gain in your jumping can be for your game. But if you happen to just be getting into sports or just wanting to do something else which requires jumping then this might be some unfamiliar territory. Hopefully these ideas can help you get going.
Firstly you might think about working a few particular exercises into your time at the gym. Plenty of physical activities require an exercise schedule that you have to keep up with, so perhaps this will not be a big deal to you. Of course you will be looking at workouts which emphasize work done with the legs, so you will want to find a place with some space that you can use.
Squatting exercises in general can be helpful, and the jump squat can be particularly beneficial. The jump squat has you jumping from a squatted pose up and onto an elevated area. You might start by jumping from ground level onto a platform that is one foot above it, for example. The platform does not have to be anything fancy; a bench could do.
Exercises like these will help strengthen leg muscles and may also improve your endurance. Of course you can also help your vertical jumps by getting involved in specific sports that can emphasize doing them. A game like basketball might help get you used to jumping as you go up to catch rebounds or take a jump shot. Some prefer this method instead of a plain gym workout because it is more fun.
By having friends or team mates involved you may improve more rapidly on your game and athletic ability. If you have trained with a sports team before then you may understand. By having others involved you can push one another and get better more effectively.
Hopefully some of this information has helped you to get an idea about how to jump higher. Keep in mind that the safety and health of your legs may need you to take any precautions like knee braces etc. Good luck on your altitude gains.