@Ominous Well, I was talking statless social stuffs, so there wouldn't be a roll. I could see an exchange where after the right approach comes up (somehow) the player reveals the character trait or note that supports that this actually works on the character, sort of like +prove from ye olden days.
However, how do you handle lying then?
Ultimately, it has to be player cooperation, and probably the right to say "I don't like your pose (about ANYTHING) so I am going to invalidate your effort. Try again."