If you know how to ski and now you want to snowboard, then first of all, you need to understand what the difference between the two sports is. The basic dissimilarity is that while skiing, you stand on two skis but while snowboarding, you stand on a single snowboard. You are already aware of the feeling of sliding across the white snow with your feet attached to some equipment, now you have to learn to make adjustments so that you can do that on a single board in place of two separate skis.
Instead of spreading your weight across both your feet that may stand apart as much as you feel comfortable with, you need to learn keeping your balance while standing relaxed on a snowboard with your weight on an edge. Because you will not have any poles to hold yourself in snowboarding, you may take a little time to get used to it. For this, the first thing that a new snowboarder has to learn is the art of falling. When we are out there to learn snowboarding, we may fall several times over the snow and even injure ourselves, but we have to learn from our falls and learn how to fall safely without getting any injuries or bruises.