Samsung SCH-I535RWBVZW - Manual (Page 30)

Understanding Your Phone 24
Tap to top
Tap on the top of the phone twice, quickly.
•
Tap to top : When this setting is On, a double tap on the top of the
phone takes you to the top of a list.
Tilt
Touch and hold with your thumbs on the screen, then tilt the
phone forward and back to zoom in or out.
•
Tilt to zoom : When this setting is On, tilting the phone while in
Gallery or Internet causes the screen to zoom in or out.