It’s technically possible if you want to leave a Wyze Plug plugged in, doing nothing. You can turn on the plug when a person is detected, tell Alexa to say “Person detected” when the plug turns on, then have Alexa turn the plug off so it’s ready for next time.
You should go here and vote for a Wyze Virtual Switch. That would allow more robust interactions like this without needing to sacrifice a Wyze Plug for every interaction.