"You are a bit flashy," he says dryly. It's possibly the biggest lie he's ever said since he agreed to his father's arraigned marriage. "It felt rude saying anything so I've held my tongue but since you brought it up."

It's Cullen's deliberate casual nature that makes Dorian suspicious. He's trying too hard to look like he's not. Dorian pays close attention to the board for a moment and makes a defensive move instead of claiming the piece he had been about to take.