Many people see the reading of opponents by their verbal or non-verbal language as a science.
Indeed some of it comes from the world of psychology which taught us how to spot whether someone was lying, or had the hots for us by their body language. During his early days he is consistently losing to a guy named Monty when suddenly in a nightmare, it comes to him. Then he pounded his right fist on the table. That rang a bell. Then quickly I knew.