Rocky's growing up, DoggyDaddy, and all your hard work is paying off. One day you'll suddenly realize that he's become an ultra-polite and well behaved Dog and you'll be so proud knowing you were a big part of it.
Mine all know what "gimme" means . . . Bimmer is best at it, Shiva and Kharma will come to me with whatever they have in their mouths, but they'll try to hide whatever it is up in their jowls and sometimes I have to reach in and feel around until I find it - fun . . . NOT! It's a good thing for your dog to know though.
They know "wait" too. I've got the same situation as you, Frzn. Bimmer has always had good manners about the door, but the grrrrls can sweep you right off your feet.