Hi Susan :)
As usual, I'll ask if you can give me more info on what exactly happens :)
"When Bailey eagerly goes up to "new" people...she immediately rolls over on her back"
What do you do? Do you let her run to people? What do the people do? Do they talk, pet, etc?
One "mistake" people often make is letting the dog do their thing... Which is okay if the dogs behaviour poses no problem (And again, a problem isn't a problem unless the owner perceives it as a problem) One has to teach a dog how it is supposed to behave in a certain situation :) Same goes for children. If parents wouldn't teach them how to behave during certain situations, I would go screaming mad :D It's no different with dogs. So if it is indeed a "excitement" thing with Bailey, the key would be to teach her how to behave instead. (basically, letting her sit or stay in her "place" and people coming in the room should ignore her excited behaviour and not say "hello" to her untill she has calmed down)
I just spend the eastern weekend with a 7 week old puppy, a Welsh Springer Spaniel :D He belongs to a friend of mine and she is going to train him to become her service dog. But she will drop him of with me from time to time to both give her some rest during that tireing puppy stage and to train him when he is here :)
Here's a cute video of Maddock (the pups name) playing with Yunah's toy frog :)
http://youtu.be/RQkGAl9su48
Sas and Yunah :)