If you're bluffing your way through a game of high-stakes poker, it's a good idea to avoid shifty, nervous eye movements, which just might give your hand away. But it's not just during poker that our eyes can betray us. A recent study suggests the way our eyes move actually reveals a scary amount about what we feel inside – to the point where AI can predict somebody's personality type simply by watching their eyes. "Thanks to our machine-learning approach, we not only validate the role of personality in explaining eye movement in everyday life, but also reveal new eye movement characteristics as predictors of personality traits," explains neuropsychologist Tobias Loetscher from the University of South Australia. There's a body of previous research suggesting our eye movements signal things about the way we think and feel – a trait humans consciously or unconsciously pick up on during interpersonal relations. But can these eye movements – and what they internally