face muted
When you press mute on your phone by accident while talking, and the other person thinks you're trying to annoy them. It happens when you're too far from your face, like you're trying to be a robot.
"You face muted me in the middle of my rant!" "I was trying to be a robot!""
He face muted his crush during a phone call and now he's a loser.
She face muted her dad during a family call and he didn't notice.