By asking your peers and or subordinates the right questions and listening you gain greater insight and they learn more than if you just talked for the duration or engaged in random social chit chat. The words that you use to formulate questions makes a big difference as does the sequence in which you ask particular questions. Realize that you do not have to answer _"yes"_ to questions and that it is your job to get buyin and more than tacit agreement for anything that you ask of someone - that way you know that you're on the same page.
Results is the measure of management effectiveness. While there are many ways to attain results, Andy Grove shares his system for attaining lasting success personally and for those under you.