He probably couldn't see the gesture with his eyes covered.
But the girl had seen his gesture too, recognized something in him.
The Shadow did not fire when he saw the gesture.
No one saw her gesture or heard the words to any spell.
Probably no one saw the gesture in the dim light.
But they had seen the gesture that accompanied the words.
She nodded again, assuming he hadn't seen the small gesture.
Perhaps they saw his obscene gesture, and understood better than he expected.
Dan nodded, then realized that she might not be able to see the gesture.
Graham turned quickly to pretend that he did not see the gesture.