Beth considers him for a moment. It's not the answer she was hoping for, exactly, but when she thinks about it, it's obvious Byerly wouldn't give her a straight answer if he could help it. He benefits from knowing the how of spotting liars, obviously, and a lot of it is probably intuition, anyway. But she wants...a sliver of who he really is, maybe. An idea of why he does what he does.

"You know a lot of liars?" she ends up asking, because that's what she thinks he might actually answer. (A ton of them, he'll say, every lord and lady of the Vor--)