As this is what every "organized crime" (people who dont want prying eyes) groups have done for centuries.
Next, normal people will adopt the Mafia's 'cover the mouth while pretending to use a tooth-pick whilst talking to prevent lip reading from remote viewers (same thing sports people do currently.
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My granmother was deaf for the latter half of her life. She became an expert lip reader.
It was fun going to restaurants with her as she would tell me what people at the tables far away were talking about "oh that couple isnt having a happy time..."
Next, normal people will adopt the Mafia's 'cover the mouth while pretending to use a tooth-pick whilst talking to prevent lip reading from remote viewers (same thing sports people do currently.
-
My granmother was deaf for the latter half of her life. She became an expert lip reader.
It was fun going to restaurants with her as she would tell me what people at the tables far away were talking about "oh that couple isnt having a happy time..."