Technically, any time you skip a string and play notes on non-adjacent strings you are string skipping. For instance, going from E string to G string. But in this guitar lesson I am not talking about string skipping as something that you occasionally do in your playing. I am talking about string skipping as its own unique technique which requires its own way to develop and master.
This guitar lesson will keep things fairly simple, but even in its simplest form string skipping can be pretty formidable because of the mayhem that can happen between string skips - getting pick stuck on intervening string, pick landing on the wrong string, pick getting sliced in half on the way to the desired string. You get the point. Very non-fun stuff can happen which is why you don't see a lot of players string skipping unless they are finger picking or hybrid picking. But I want to show you that even using a pick you can string skip through very intricate passages.
Because of the challenges that string skipping poses, it is very important to have a practice regimen that solidifies your muscle memory. Since string skipping may seem unnatural, you need to train your fingers to get used to the jumps that are inherent in string skipping. My string skipping guitar lessons are designed wit this in mind. After a while you won't care whether you are skipping from low E to G or low E to high E. After a while, your fingers will have practiced so many variations that any sort of skip will just feel natural.
So get started and have fun developing this very cool technique!