Smart poker players know that they have to play the other players, not the cards, and Doyle Brunson, at 69, is probably the smartest poker player there is. A two-time winner of the World Series of Poker, Brunson literally wrote the book: His Super System, first published in 1979, is the bible of poker pros all over the world. More a tome than a book, its dense pages are filled with Brunson's obsessive technical analyses of how to play the hand you're dealt. But watching Brunson play—as you can on the Travel Channel's World Poker Tour (Wednesdays, 9 p.m. ET/PT, Saturdays, 2 p.m. ET)—you notice he only looks at his own cards after he's watched the other players look at theirs. His cards aren't going anywhere—but the reactions of his opponents will be gone in the blink of an eye. And the way a competitor's eye blinks (or doesn't) may be the crucial "tell" that indicates the strength of his hand and makes the difference between Brunson's winning or losing one of the six- or seven-figure pots that quickly build.