When I do the Magic Eye things, I don't get the proper effect when I go crosseyed, I have to go walleyed. My brain is more literal, I guess, and doesn't self-correct. If I go crosseyed at a magic-eye, the objects that are supposed to pop out instead look like carved holes in the image, and it's very difficult to recognize the object.

The thing is, cross-eyed is easier for me than walleyed. Dunno why. For the Magic Eye things, it only works for me if the image is under glass and I can see my reflection in the glass. then I just focus on my reflection and that gets my eyes diverged at the proper amount, and bam, there's the 3D image.