People who adopt a careerist strategy focus on career advancement through political machinations rather than excellent performance. Experts have pointed out four ways in which workers try to influence their superiors' opinions of them: favor doing (doing a favor for a superior in hopes that the favor will someday be returned), opinion conformity (agreeing with superiors in order to build trust and a relationship), other enhancement (flattery), and self-presentation (portraying oneself as having very desirable traits and motives). In what other ways might employees try to influence their superiors' opinions of them? How can managers tell when an employee is sincere? What criteria should be used when deciding which employees to promote?