I have a secret to tell you. I know how to read minds. Seriously. And, I can show you how to do it, too. All you need is to read this paper from researchers in Kyoto, Japan and to get your hands on a functional magnetic resonance imaging (fMRI) machine.
Yoichi Miyawaki and colleagues interpreted signals from fMRI scans of test subjects brains to generate representations of images at which the subjects were looking. The processed images look something like this: