She practices that face in front of a mirror.
No, really. They all do.
I find thinking about that when I talk with them provides the perfect amount of smile on my side to undermine their pretense. And for the ones who then dig in... game on.
These are not nice people. Getting you to think otherwise is well over half of their game. For many of them, it is all of their game.
They make hyenas look dainty.
That face just tells me: “If I call this lady ‘sweetheart’, hilarity will ensue”. I’m a bit of a troublemaker, I guess :)