HTC One M9 User Manual page 35

35 Your first week with your new phone
Press and flick
Slide with two fingers
On the Home screen, you can easily move a widget or icon from
one screen to another.
Press and hold the widget or icon with one finger, and flick the
screen to the new location with another finger.
In some apps, like Gallery, Messages, Mail, or
the web browser, slide two fingers apart to zoom
in when viewing a picture or text.
Slide two fingers together to zoom out of the picture or text.