It's not something you can just pick up and try every once in a while. You have to seriously focus on it, like at least several hours a week. Once you get it,

It's not something you can just pick up and try every once in a while. You have to seriously focus on it, like at least several hours a week. Once you get it, you'll never forget how, though. I learned in high school and only do it sporadically, and I can still pick up any random collection of 3 things and juggle 20 years later. I've got a couple of other skills that took me a few months to pick up -- card tricks, and beatmatching records. They're all skills that look effortless but take a lot of practice to get right.