"I don't know the exact specifications of the security cameras, they could be able to make out your lip movements."

Maya kept her head down and looking at her book. Playing with her hair absently, she needed to make it look accidental when she dialed down her headphones. Which would make her keeling over more realistic... because if she did accidentally dial down her headphones she'd be unconscious in the space of a few minutes.

"I'll give you a countdown, when I hit zero be looking at me. Ten..."

Maya turned down her headphones at around four, and started to slump over at zero.