In the meantime, look at this picture to see if you know which hand is doing the drawing:

[URL=http://s1088.photobucket.com/user/TheCreator7/media/00-The%20Creators%20Desk/Optical%20Illusions/drawinghands_zpslvddvl8o.jpg.html][IMG]http://i1088.photobucket.com/albums/i325/TheCreator7/00-The%20Creators%20Desk/Optical%20Illusions/drawinghands_zpslvddvl8o.jpg[/IMG][/URL]