1. Pick a spot on the picture (the middle
seems to work best) and just stare at it.
2. Allow your eyes to relax, don't just stare
AT the image, stare THROUGH it. You'll notice
your eyes go slightly out of focus.
3. Believe that an image is behind the
graphic you can see, THINK about it.
4. Keep staring, don't give up, once you
begin to see the first image, it gets much
easier.