Years ago I read a book by a Stanford psychology professor about facial clues that a person is lying (his area of research). As I recall he said that a major clue is in the eyebrows... that generally speaking all but the very best liars involuntarily raise their eyebrows when lying.
Now I have no idea if the good professor knows what he is talking about or not. But if he is right, it does appear to me that SanFranNan is lying through her cosmetically enhanced teeth.
Sicilians are great liars. The best in the world. I'm a Sicilian. And my old man was the world heavyweight champion of Sicilian liars. And from growin’ up with him I learned the pantomime. Now there are seventeen different things a guy can do when he lies to give him away. A guy has seventeen pantomimes. A woman's got twenty, but a guy's got seventeen. And if you know ‘em like ya know your own face, they beat lie detectors to hell. What we got here is a little game of show and tell. You don't wanna show me nothin’. But you're tellin’ me everything. Now I know you know where they are. So tell me, before I do some damage you won't walk away from.