I'm going to name my future daughter "Alexa" as a lifelong prank. And if I have a son, I'll name him "Ok, Google" :P
Jokes aside, I have been using voice commands more frequently in public and I've noticed most people are able to differentiate the tone you speak to AI vs. the tones you use to speak to people (irl or on the phone). Though, I still do accidentally troll bystanders once in a while.