HTC Butterfly 2 - Manual (Page 37)

Drag
Press and hold your finger with some pressure before you start
to drag. While dragging, don't release your finger until you
have reached the target position.
Flick
Flicking the screen is similar to swiping, except that
you need to swipe your finger in light, quicker
strokes, such as when moving right and left on the
Home screen, or flicking through a contacts or
message list.
Press and flick
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.
37 Your first week with your new phone