From what I am understanding, is that normally when you use OK Google for the first time, it has a welcome screen light welcome use OK Google for as to whether and stuff like that, I think what he's trying to do is turn it off so it only does the introduction one time, and then the rest of the time she goes bloop bloop and then it just you know just do what you want it. If you hold in the home button and get to the Google screen, there should be an icon in the top-right corner if you click on that, you should be able to go to the settings, and there somewhere should be something for using the Google Assistant, if you need to turn it off and then turn it back on in that menu. Hope this helps