Be willing to share your best practices with others. Pass along what you have learned from others, what you have learned through your mistakes, and from what you figured out on your own that turned out better than you could have ever imagined. The best leaders and mentors that I have come across don't bottle up and keep in what they have learned, they just pass it forward...passing it on to others and the next generation.
Look back over your life and think on these three areas. What have you 1) discovered 2) learned by doing it the wrong way and 3) found out that your idea or concept actually worked better than you imagined? Pass along your answers to these questions to someone NOT in your inner circle of friends. Help them become better than they were before you knew them, after all it's a better way to do life and it models the way for others.