1. Turn on Siri
Press and hold the Home key.
If you've turned on automatic activation, you can activate voice control by saying "Hey Siri".
2. Use voice control
Say, in your own words, what you would like your phone to do, e.g.: CAMERA, CALL [contact], SEARCH THE WEB FOR [information].
If an application is open on your phone, such as a Mail, you can also use the functions available here, e.g.: REPLY [text].
Say "Help" for more examples.
3. Return to the home screen
Press the Home key to return to the home screen.