For added security when showing your phone to someone else, use screen pinning to lock the display on the current app. 
	 
 
  
 
	 -  
		  From the 
				Home screen, tap 
				. 
			  
		
-  
		  Under 
			 Advanced, tap 
			 Screen pinning, and then tap the 
			 On/Off switch to turn it on. 
		   
		
- Choose if to display the screen lock when unpinning. To require a screen lock for unpinning, do one of the following: - If you haven't set a screen lock yet, tap Lock device when unpinning  to set your screen lock.
- If you have set a screen lock, tap Ask for unlock pattern before unpinning if its On/Off switch is not turned on.
 
-  
		  Open the app that you want, and then press  . .
-  
		  On the thumbnail of the latest app you opened, tap  . .
-  
		  To unpin the screen, press and hold  and and at the same. at the same.