https://bluinfo.z13.web.core.windows.net/Quick_Start/How_to_Opt_In_or_Out_of_Appearance_Recognition_Using_a_Person_Reader
How to Opt In or Out of Appearance Recognition Using a Person Reader | BluINFO
Follow these steps to opt in or out of appearance recognition at any person reader:
opt in or out
https://support.google.com/youtube/answer/7123737?hl=en
Opt in or out of YouTube emails - YouTube Help
Turn on emails from YouTube How to opt in or out of YouTube email notifications You can opt in to get emails about your YouTube activity. General pr
opt in or outyoutubeemailshelp