En la pantalla de inicio, ve hasta: Settings > Siri & Search.
Si se te solicita, oprime Enable Siri.
Tap the Listen for 'Hey Siri' switch to turn on o desactivar .
Tap the Press Home for Siri switch to turn on or off.
Tap the individual apps you want to use Siri with then tap the Siri & Search Suggestions switch to turn on or off .
This will allow your info (e.g., location, nicknames, things you say, etc.) to be transmitted to Apple so you can use Siri within certain apps.