Use the arrow keys to move the brush around. After you choose a primary color, you can press space to erase everything, "e" to erase only a small space, "r" to draw in red, "o" to draw in orange, "y" to draw in yellow, "g" to draw in green, "b" to draw in blue, "p" to draw in purple, and "h" to draw in black. To make your color darker, press "0," and press "1" to make it lighter. To make your brush stroke bigger, press "l" and make it smaller by pressing "s." To take your brush off the paper, press "u" and press "m" to put it back on the paper. When you're ready to hand your drawing in, press "d."
This is all mine, but I really like the drawing attachment I used for it ;)
