Wonder if there's a dataset for this. Maybe run a simple n-gram over the interviews and see if certain phrases show up more often for truth tellers vs liars. I

Wonder if there's a dataset for this. Maybe run a simple n-gram over the interviews and see if certain phrases show up more often for truth tellers vs liars. If you're in the poker world, you know that physical tells _are_ a thing but only to reaffirm your read and should not be the entire basis of whether you bet/call/fold (ala Casino Royale). Because it's so hard to place your entire reasoning because, "he's covering his mouth, so he's bluffing" and "he's shaking his hands, he must have a good hand" sometimes those are true tells, but sometimes maybe the room is just really cold and the player is trying to warm himself up. Or maybe he's throwing a reverse tell. I remember Phil Hellmuth shilled a book about physical tells from a former FBI agent, not sure if there was any substance to that book.