Answer calls on Samsung mobile..The other way

• Open the phone, and choose Settings                                                  
• You will find an option with a hand icon named Accessibility. Tap on this option to continue.                                                             
• Tap on the Answering and ending calls option.                                                                                                                                              At the top of the list, you will see three options that allow you to answer incoming phone calls without touching the screen: Pressing the Home key, Voice control, and Waving hand over device.                                                                                       Now you can wave at your phone and answer calls and impress your friends.