Career development expert Kimberly B. Cummings went from studying her bosses to becoming one, and that process shaped how she approaches being a leader at work. Whether you're managing employees or shaping your relationship with your boss by managing up, Cummings shares tips on how to do both.The audio portion of this episode was produced by Clare Marie Schneider, with audio engineering support from Neal Rauch.We'd love to hear from you. Leave us a voicemail at 202-216-9823, or email us at LifeKit@npr.org. For more Life Kit, subscribe to our newsletter.