If you turn off "Ok Google", you can still talk with your Assistant by touching and holding the on-screen Home button on your Device
- On your tablet, touch and hold the on-screen Home button.
- At the top-right, tap More Settings.
- Under "Devices", select your tablet.
- Turn on Google Assistant turn “Ok Google” detection on or off.
- If you don’t see these steps, you’re using an earlier version of the Google app. Instead, tap "Ok Google" detection turn Say "Ok Google" any time on or off.