Get the latest tech news
How to set up Siri on your iPhone
Get instant answers without having to type in a search.
to your iPhone only for Apple's digital assistant to ignore you completely (rude), chances are the function hasn't been enabled yet. In order for Siri to work, you'll need to enable it on your iPhone before you can have the assistant perform tasks like texting your friends or searching the internet hands-free. Step 3: Tap the switch at the top to turn it green and enable "Listen for 'Hey, Siri'".
Or read this on Mashable