These tips come from Entrepreneur.com.
Do not be discouraged by mistakes and failures
Mistakes, partial failures and minor disasters will always happen. These missteps are part of the journey to success. Do not be discouraged by them and pass this insight on to your subordinates.
Be open to the opinions and advice of those around you
Being a good manager means learning all the time. It also means surrounding yourself with people who know more than you, and being able to absorb new suggestions, opinions and tips from these people.
Be a mentor but, most importantly, have a mentor yourself
Make yourself available as an advisor and mentor to your subordinates but don't neglect yourself. Find your own mentor, someone who can teach and support you in the long term.
Great leaders have one thing in common: a positive attitude to change. Rather than trying to maintain the status quo at all costs, they know that the world is dynamic, society and all branches of industry are constantly evolving, and change represents an opportunity.
Choose your team carefully
Many managers are reluctant to choose people for their team who are too ambitious and too good, for fear of being outshone. This is, of course, a huge mistake. The only way to succeed as a manager is to select the best people to work with, and to welcome their ideas and even occasional disagreements.