If you've never done plyo's before then start slow. If you don't start slow you will actually see adverse effects and therefore performance will decrease.
Start off with Jumps For Height - Stand under a b-ball hoop and try touching the rim or more every time you jump. Use both feet for now. . Do not take a running start; squat down and explode. Upon landing, reload, and do it again. Do 5 sets of 5 jumps
Then do tuck jumps- Jump as high as you can and while in the air, tuck your legs in, so that you basically form a human ball. Upon landing, reload and expload has quickly as possible. Try to minimize ground contact. Do 5 sets of 5 jumps.
After about 5 weeks of this replace jumps for height with one footed jumps for height. Do the same directions, only use one foot, and make sure to rotate feet. Do 5 sets of 5 reps for each foot.
Remember, plyo's work best when you have about 2 days of rest in between. Lift on seperate days of when you do plyos'. Give me a hollar if you have any questions.