Operant conditioning is a learning process that modifies behavior through reinforcement or punishment. Positive reinforcement increases a behavior by rewarding it, while negative reinforcement increases a behavior by removing an unwanted stimulus. Punishment decreases a behavior by introducing an unpleasant consequence. The document introduces characters like Tripp, a 35-year-old man still living with his parents, and his friend Paula, who is hired to date Tripp using operant conditioning techniques to motivate him to move out on his own.