If you don't want people to look at you, wear a lot of peripherals...

 (embellishing on my notes from READING DRAWINGS- Professor Stephen Farthing)
-Eye trackers plot the movement of the eye as we observe an image- very interesting patterns result...

eyes are drawn to unusual elements in an image- we keep returning our gaze to the unusual so that we might begin to understand what it is/means etc.

Sheila Gallagher produced drawings using this technology.

http://www.shegallagher.com/work.htm#

' "Hand/Eye": Judy Ann Goldman Gallery, Boston, MA. To create this series the artist projected images of female athletes onto a large screen in the Eye Tracking Lab of Boston College. Every 20 milliseconds, two infrared sensors recorded the artist’s eye movements. The data gathered was then translated into a CAD program allowing the temporal sequence to be plotted as a single unbroken line drawing. '