Huawei Mate 8 - Manual (Page 50)

Getting to know your phone
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Touch: Touch an item once. For example, touch to
select an option or open an app.
Double touch: Touch the target area of the screen
twice in quick succession. For example, double touch
an image to zoom in or out.
Touch and hold: Touch and hold the target area of
the screen for at least 2 seconds. For example, touch
and hold a blank area on the home screen to enter
the home screen editing mode.
Swipe: Swipe your finger on the screen. For
example, in the Notifications tab in the notification
panel, swipe left or right on a notification to dismiss
it. Swipe vertically or horizontally to go to other
home screens, scroll through a document, and more.