Waitressing can be a hard and thankless job, largely because it requires dealing politely with people regardless of their temperament or mood, even though sometimes you just want to smack them. You can always tell when a waitress likes her work. She lacks the slouch and shuffle that signifies boredom and grievance. Her smile isn’t fixed but comes and goes easily, appropriate to the moment. She makes eye contact and notices details because her customers interest her, not as the source of tips, but as people.