You can use the VoiceOver Practice area to safely try out VoiceOver gestures and hear what they do—without performing any action or otherwise affecting iPhone.
Try different techniques to discover which works best for you. If a gesture doesn’t work, try a quicker movement, especially for a double tap or swipe gesture. To swipe, try brushing the screen quickly with your finger or fingers. For best results using multifinger gestures, touch the screen with some space between your fingers.
Go to Settings
> Accessibility > VoiceOver.Turn on VoiceOver, tap VoiceOver Practice, then double-tap to start.
Practice the following gestures with one, two, three, and four fingers:
Tap
Double tap
Triple tap
Swipe left, right, up, or down
When you finish practicing, tap Done, then double-tap to exit.