{ being able to discern whether someone is speaking the truth is a handy trick if you'll be having a conversation as well. so perhaps it's best she asks someone she knows if she's not as practiced with that.

still, he lets out a small laugh }

Oh, I think you misunderstood. I'm no scholar. Perhaps that's why you've found a difference in behaviour here. And that, I think, they're not being as open about yet. It leads me to believe it may be recent enough they'll have had at least relatives who would have told them, if they didn't live through it themselves.