If you see someone doing a Felix the Cat impression then they might be trying to remember something. According to this article below, moving your eyes left to right can help you remember. I’d be interested to know if anyone actually does this or has used to this trick to help them remember.
A recent study suggests that merely glancing from left to right (the traditional “shifty look” of spies and sneaks) can boost memory power and help people differentiate between real and imagined memories. Moving the eyes up and down had no such effect. The trick may work because the specific left/right eye movement engages both the left and right hemispheres of the brain at the same time. As little as 30 seconds of the activity could be enough to help you remember where you left your wallet, or the number sequence needed to deactivate that bomb.