Asus X751LD - Manual (Page 27)

Notebook PC E-Manual 
One-finger gestures
Tap/click/Double tap/click
• In the Start screen, tap/click an app to launch it.
• In Desktop mode, double-tap/click an application to launch it.
Drag and drop
Double-tap/click an item, then slide the same finger without lifting it
off the touchpad. To drop the item to its new location, lift your finger
from the touchpad.