Click the green flag at the top. Click the color of chose on the side. Press the up key to go up, down to go down, left to go left, and right to go right. Press the a key to make a small arc, s for a larger one, and d for a big one. If you want to pick another color, just click it. You can't erase or change the pen size. Click up to make pen go up but remember to click down, so you can start drawing again.
