On iPhone or iPad, go to Settings
Tap Siri & Search
Turn on Listen for “Hey Siri” or Listen for “Siri”
Turn on Press Side Button for Siri or Press Home for Siri
Follow the on-screen setup prompts
On Mac, go to System Settings
Click Siri & Spotlight or Apple Intelligence & Siri
Turn on Ask Siri
Set the Siri activation option if prompted
On Apple Watch, open Settings
Tap Siri
Turn on Listen for “Hey Siri” or Raise to Speak
On HomePod, open the Home app
Select HomePod settings
Turn on Listen for “Hey Siri” or Siri
Make sure your device is connected to the internet
Make sure Siri is available in your region and language settings