How Do I Change the Responses from Google Home?
you might alsochange your Google Home voiceif you want to switch things out from the default voice.
To set custom responses, follow the steps below.

initiate the Google Home app on your smartphone and tapRoutinesto initiate the routines menu.
Use your finger to select theAdd Routinebutton, which looks like a multicolored plus sign in the bottom right.
TapAdd Starterto choose how you want to activate the routine.
Unfortunately, theres no official way to change the Google Home wake word.
Another fun command that Google Home users learned about is,hey, boo-boo.