Harry's Masculinity Report 2018 https://s3.amazonaws.com/harrys-cdnx-prod/manual/Harry%27s+Masculinity+Report%2C+USA+2018.pdf - Men are happiest when a part of something where they feel needed and valued.
Anderson, Cameron & Hildreth, John & Howland, Laura. (2015). Is the Desire for Status a Fundamental Human Motive? A Review of the Empirical Literature. Psychological bulletin. 141. 10.1037/a0038781. - Demonstrating the male need for respect.
Gender Differences in Implicit Self-Esteem Following a Romantic Partner’s Success or Failure," Kate A. Ratliff, PhD, University of Florida, and Shigehiro Oishi, PhD, University of Virginia; Journal of Personality and Social Psychology, online Aug. 5, 2013. - Men have lower self-esteem when their partner succeeds and they fail (i.e. they don't feel needed/irreplaceable).
Canevello A, Crocker J. Creating good relationships: Responsiveness, relationship quality, and interpersonal goals. J Pers Soc Psychol. 2010;99(1):78-106. doi:10.1037/a0018186 - Showing him you believe in him and he's the one for the job.
Reis HT, Lemay Jr EP, Finkenauer C. Toward understanding understanding: The importance of feeling understood in relationships. Social and Personality Psychology Compass. 2017:11(3):e12308. doi:10.1111/spc3.12308 - You value his point of view and abilities.