Servant Leadership.
Is it a particular technique? Or is it just a catchy slogan?
I think it's a way of considering your responsibility as a leader and your relationship with the other members on your team. It's a paradigm--a way of thinking about you and a way of thinking about them. Perhaps the attached article will help you if you've never considered the concept--put the term into a search engine and read more about it.
If you've considered the concept but never acted upon it, perhaps “What Services Do Servant Leaders Provide?” will serve as a source of inspiration.
Dennis