If you’ve ever visited a carnival, it’s likely you’ve encountered a fortune teller. Many fortune tellers engage in a practice known as “cold reading” in which they seem to magically know things about your personal life. Through this process, the fortune teller reads “signals” from your body language to identify insights into your life based on context clues from your mannerisms in order to gain your trust and provide a believable prediction of something that might happen in your future. Often, this involves objects such as crystal balls, magical tea leaves, or tarot cards for extra dramatic effect.