Let's quickly remember a few of VoiceOver's most important gestures that will let you do some of the most basic actions including selection, interacting, navigating, and scrolling.

And Apple has a great video: https://m.youtube.com/watch?v=qDm7GiKra28&feature=youtu.be

VoiceOver Cheat Sheet, number 1. Showing 5 basic VoiceOver gestures. The first one is tap, which selects an element and VoiceOver announces it. In the example, the MobileA11y profile screen in the Twitter app selects the more options button, so VoiceOver says