“Critics must talk. When they accused me of killing the opposition, but I didn’t have a gun.” That was President Bola Tinubu talking last week. It was at the interfaith breaking of fast with members of the Senate which held at the Presidential Villa in Abuja. He was replying gathering pushback from opposition forces who claimed he was coercing decampers into his APC. The president was in high spirit. You do not have to be a nonverbal communication aficionado to see it coursing through him. But if you are vast in emotion recognition, cognitive neuroscience and emotional intelligence, the president’s joy would be right on your palm. These fields show how humans can decode, interpret and process information from facial expressions, features and movements. Merely looking at you, they penetrate...