Marathe at Ennet House (p. 732)
The veil allowed Marathe the liberty of staring calmly back at the addicted man without the man’s knowledge, which Marathe found he enjoyed.
Context
The U.H.I.D. veil revealed as a perfect surveillance instrument — the one-way mirror the disability-deformity plan routes here. The cloth that hides Marathe's face also lets him watch unobserved: he stares "calmly back… without the man's knowledge," and finds he enjoys it. This is the veil's concealment-craft function stripped of its shame-content (Joelle's body is dd's): worn by an assassin it is pure tradecraft, a device that makes the wearer invisible in exactly the direction he is looking. Concealment and observation delivered in a single yard of cheesecloth — "openly hide," the book's phrase for the whole method, made literal.