His eyes follow you to the window.
His pupils have turned milky white.
He leans his head back, blinks once and moans.
Snapping his head forwards,
he now glares at you with eyes that have turned to shining silver!
His gaze is hypnotic, and you will have to act quickly.
Hide yourself behind one of the drapes ?
Pull one of the drapes down and throw it over his head ?
Look through your backpack for something to use ?