Quote Originally Posted by Scooby4
I may suggest trying some behavior modifications. For example, give the dog a toy when company comes over. This should distract the dog for a bit. Maybe have the dog to take the toy or chew treat and lie at your feet. That way the dog feels "included" but gently distracted.
I don't think the dog will take well to being locked up or locked out of ANY conversations. Instead, try to work in a "special place" in your presence but still out of the way. Maybe move the dog bed into the room your in and teach him/her to lie there with a toy.
My dogs get VERY excited when a new person comes into the house. However, about a few minutes later the newness has worn off and they lay down nearby. Maybe have your guest pet the dog initially and then put the dog in it's place. They like order and you are "Alpha dog".
I agree.

NO dog thinks it is human. When you start to treat a dog like a child, it will associate that as being them being the alpha dog- not you. That is the number one thing dog owners need to know. People will start to treat there dogs like humans and say "She thinks she human" and it starts major behavioural problems. (I watch dog whisperer way to much, lol) Although that isn't the case for you, just telling yah.