What happened after Manny walked to the Rio Bravo Hotel and saw the Sergeant at the table?

After Manny walked to the Rio Bravo Hotel and saw the Sergeant at the table, he stood by the Sergeant's table silently, observing him. However, the Sergeant quickly notices him, and so does a waiter at the restaurant. Since Manny is obviously a "street kid," the waiter gets ahold of Manny and attempts to drag him out of the restaurant. The Sergeant stops the waiter and allows Manny to join him at the table. The Sergeant hands Manny a menu, but Manny is illiterate. However, this doesn't stop him from taking advantage of the opportunity to have a free meal. He begins to list random food items he knows to the waiter. When the food comes, Manny hastily eats the food, as if he had not eaten in days. The Sergeant observes Manny quietly, and it reminds him of his experiences in the Vietnam War, in which he watched a starved monkey escape his cage and ravenously eat the food in the camp.