Be Like The Managers You Admired During Your Career
As a manager, you've undoubtedly worked for other managers in your career. You've likely worked for good managers and for not so good managers.
One of the simplest things you can do to ensure you are a good manager is to think about what you liked and disliked about your past managers.
Then, adapt your management style to include the things you appreciated most from your past good managers.
Most important, don't do the things that you disliked about how your past managers behaved. Odds are that those are the same things your employees won't like you to do.