Use everything you've ever learned about drawing inanimate objects to draw the human figure. You will need to use efficient lines and accurate perspective to draw a number of basic shapes that will come together in the shape of a human body. Watch this instructional drawing video to begin drawing figures in perspective. Even if you are not an expert at anatomy, you can calculate what simple shapes look like in perspective and carve back into the basic forms.
Have an iPhone? Check out all 200+ new features coming in iOS 13.