You complete pho at the table—and unlike with many similar dishes, where everybody’s got their own way of doing things, in Hanoi there seems to be an accepted orthodoxy. A dot or two of chili paste, a tiny drizzle of chili sauce, a generous squeeze of lime, toss lightly with chopsticks in the right hand—and spoon with the left. Ideally, one wants a perfect marriage of beef, broth, and noodle in each mouthful. Slurping is encouraged. As is leaning down into your bowl. As is lifting the bowl to near your mouth.