I love the way dogs' whole mannerisms change when they are pleased with themselves. I see it at the daycare all the time too - the dog with the toy always looks proud as punch.
Coulee doesn't do this though... I think she is too serious to be proud. She is probably thinking "Of course I got the toy. That is what I was supposed to do."
Lacey on the other hand, doesn't mind flaunting it.