How do you know if Barack Obama is unhappy with what you're saying—or not saying? At meetings of his closest advisers, he likes to lean back, put his feet on the table and close his eyes. If he doesn't like how the conversation is going, he will lean forward, put his feet on the floor and "adjust his socks, kind of start tugging at them," says Michael Strautmanis, a counselor to the campaign. Obama wants people to talk, but he doesn't want to intimidate them. "If you haven't said anything, he'll call on you," says Strautmanis. "He's never said it,...