Visit the main menu in the Google Home App and select Home Controls. This will take you to a menu showing all the devices connected to your Google Home, organized by room.
Look for the Nest icon on this menu and select it. This menu will take you to a permissions page that will allow your Google Home to find your Nest product.
Accept the terms and assign the device to a room.
Adding this detail makes it easier for Google Home to control your Nest devices.