There have been many methods of knitting developed over the years, but English and Continental are the two most commonly used today. Regardless of which way you choose to knit, the right hand will do the bulk of the work.
The English method, also known as throwing, involves wrapping the working yarn around the right needle and then pulling it through. In order to wrap the working yarn around the needle, it is necessary to let go of the right needle to “throw” the yarn around the needle before knitting the stitch.
The Continental method is often considered to be the faster and more efficient of the two methods, because you do not let go of either needle to complete the stitch. The tip of the right needle “picks up” the yarn and pulls it through the loop.