This is a first attempt to put into words the power of adaptation. You don't know what is required, yet by observing and acting together with an unnatural keen for fitting in you manage to always just do the right thing. Or even just appearing to do the right thing in cases where you set the stage. As to the Discipline tree, this could tie in with presence as an alternate path for Rationalized Role (https://campaigns.13w.nl/victorian-society/tools/book/unique-gifts.html#rationalized-role) For skills, I could see this wanting Manipulation/Etiquette because you are pulling off as though you belong where you don't. Kind of the thing Lord Krain does anyway. Alternatively, this could be based on supernatural observation and knowledge instead. Wits/Etiquette could represent observation where this allows one to know what could be expected to be proper or alternatively what would cause an uproar. That way you could argue it's tied to Auspex.