Here we begin to introduce our dogs to the blind retrieve. In the video you'll see we had already put out a couple of dummies while the dog was in the truck. She is sent for a marked retrieve and then sent using the "back" command which we have been conditioning through the memory retrieving. If you are unable to put dummies out without your dog seeing then when your dog is going out for the marked retrieve put a blind out behind or to the side of you.