percheron67 I wasn't suggesting using a 'shrill' voice. I was suggesting a high pitched excited voice in order to get the puppy's attention.
This is not something I made up, it's advice I was given by the trainer I used when my dog was a puppy and something I've read in several training books and is generally accepted as a good way of getting a puppy's attention.
My dog is now eight years old and still loves an excited voice.
'Where's your ball' said in an excited, lets play way, will get her searching for her ball.
Dogs and puppies can listen to you until you're blue in the face, but as far as I know my dog doesn't speak or understand English in a general way, unlike children, especially when she was a tiny puppy, so treats were they only things that let her know that she was doing the things I wanted her to do. That's how she learned 'proper' behaviour.
It's impossible to explain to a puppy or a dog that what they're doing is not 'proper' behaviour.
I knew someone who decided that they would train their dog without any rewarding - doesn't have to be treats, it can be a toy. The dog, a collie, so an intelligent dog, had no way of knowing that when it performed a behaviour it was doing exactly what was required of it, and as a consequence it's training took forever.
Dog's have no concept of bad or good behaviour, which is why reward based training is so effective. They learn very quickly, when they do something and get a reward for it, that it's a good thing to do. Telling them off or shouting at them will teach them nothing except to be fearful of the loud voice.