Both my Beagle and Pom-a-Poo are super polite but their eyes follow me everywhere and they have to be in the same room as I'm in at all times. They jockey for position when I'm handing out chest scratches and body massages.
I trained my beagle not to scratch the door frame and glass when wanting in. Only took 3 tries. But it made a huge impression on my pom-a-poo as she watched from a short distance. It wasn't even about her.
Now, they both wait quietly. When I open the door to let them in my pom-a-poo just sits watching me and waiting until I personally invite her in. I tell her it's okay but still she waits for an invite. "Come on in", I say. Such a little sweetie-pie.
All I did was scratch the door with my fingers, point to the spot I scratched, and calmly say to my beagle, "No scratch. Nooo, that's bad" while my pom-a-poo looked on.