Setting this option to On means Siri is ready to accept commands when you raise your phone to your ear. You can always invoke Siri by pressing and holding your iPhone's Home button. Tap the Home button to exit Settings.
Effective listening is a way of showing concern for subordinates, and that fosters cohesive bonds, commitment, and trust. Effective listening tends to reduce the frequency of interpersonal conflict and increases the likelihood that when conflicts emerge they will be resolved with a win-win solution.
1 In this example, the color of the office is the independent variable.  Researchers want to learn whether listening to fast-paced music helps runners perform better during a marathon. In an experiment, one group of runners listens to fast-paced music while another group listens to slow-paced music.