With the aim of enhancing formal classroom training in interpersonal skills, this study examined the effects of combining classroom training with two on-the-job supplements, namely, self-coaching and upward feedback. The self-coaching system used a workbook containing self-assessments, while the feedback system provided trainees with formal, written feedback on their interpersonal skills. Testing these approaches on a sample of 87 trainees from 75 units of a national restaurant chain, this study found that both approaches may be useful extensions to formal classroom training. Moreover, they were strongest when used together.