In addition to press and hold the home button, there’s another way to call up Siri. Go to Settings > General > Siri, and turn on the switch for “Raise to Speak”. Now when you raise the iPhone up to your ear, Siri will be activated. This is more like talking to a friend and makes you looking less geeky in public. We must admit this is only useful when you have mastered the art of commanding Siri.