Some workers just never properly learn Zoom call etiquette . A lot of folks got really proficient at using the video call service when we all had to work at our homes for a while a few years back. But others are still new to the app, and aren't quite sure how to run a meeting. For example, it's common etiquette to mute your microphone if you aren't speaking. It's not enough just to stay quiet, because there's bound to be background noise, like kids running around, dogs barking, or cars revving.…