"In politics, body language is everything. In chess, I found that by strategically placing my hands on my face, I could influence the mind of my opponent."
The chess legend went on to explain the various messages he could send with body language.
"If I put a half-clenched fist under my chin it meant, 'oh, that was a good move, but really quite silly.' Usually this move will cause my opponent to squirm a little."
He further explains, "If I want my opponent to piss his pants, then I put my whole hand over my mouth and give him the stare of death. Then I wait for him to resign."