Surprise your friends by becoming an excellent artist just like that. Unleash your creativity. Artist's Eye is utility that helps you to draw or paint with real pen or pencil to paper or canvas. Choose model picture (e.g. photo) and while you draw watch your drawing or painting through the phone or tablet (that need to have camera). Model will be shown semi-transparent on the top of your ongoing drawing helping you to outline the contours. A bit same way as with camera lucida obscura already hundreds of years ago (http://en.wikipedia.org/wiki/Camera_lucida). It is best if you can attach phone to some kind of support stand so that it stays still and both hands are free. This is not cheating but a new way of working and learning as well.
Hint: On some new Samsung and LG phones that don't have menu button you can access menu by long pressing task switching button.