Tips and tricks Launch actions with voice control ("Ok Google")
To launch apps by voice control (for example: call a contact, Web search, etc.):*
Manual mode - tap on at the bottom of the screen for 3 seconds, - say "Ok Google" or tap on and spell your search.
Automatic mode - open "Settings" app or : - tap on "Google", - tap on "Search", - tap on "Voice", - tap on "Voice Match", - enable "Say "Ok Google" any time" and follow the instructions.**