You can selectively enable Motion settings to control phone features by tilting, shaking, or making special movements with the phone.
1. On the Home screen, press the Menu key and tap Settings (or tap the Settings shortcut).
2. In the Device section of Settings, tap Motion.
3. The Motion settings screen appears. To use any of the motion features, you must enable Motion Activation by tapping its check box. Similarly, you can simultaneously disable all motion features by removing the check mark.
4. When enabled (On), the ...