Click the color you want to draw with, then hold the mouse down to draw. Press a,b,c, or d to make a stamp. The arrows make the pen bigger or smaller. The clear screen button, well, clears the screen. If you want to, you can press Alt, then at the same time PrtScrn (on a PC) to take a picture of what you drew. Then you can paste it into Paint or another graphics program and save it!
