This is what I'm doing with one piece. Take a marker and put it on the paper. Make something, and as you are drawing, don't be conscious of what you are doing. draw circles, squares, what have you, just don't say "I am going to draw a car or a house." See where it takes you. It's sort of a Jackson Pollock method, you're consumed in the drawing, and yet you're open to exploring of what it will be. There's no wrong way, everyone's style is unique to them. Good Luck and have fun.