Asus X502CA - Manual (Page 26)

6 Notebook PC E-Manual
Moving the pointer
You can tap or click anywhere on the touchpad to activate its
pointer, then slide your finger on the touchpad to move the pointer
onscreen.
Slide horizontally
Slide vertically
Slide diagonally
Using the touchpad
Gestures for the touchpad
Gestures allow you to launch programs and access the settings of
your Notebook PC. Refer to the following illustrations when using
hand gestures on your touchpad.