To enable the spoken tee order feature, navigate to your scorecard settings from the upper right of the scorecard, or find it in the More > Settings. 

The tee order can be spoken automatically when you swipe up to the next hole if there are two or more players. To use this feature, make sure your volume is up, and if you're on iOS, make sure your device's mute switch is off. When you swipe to the next hole, the tee order will automatically be spoken.