I have a six month old long coat german shepherd pup. We take her to obedience training each week and one of the tips we have learned is to use a very gruff, loud 'uh uh' when she does something we don't want her to instead of 'no'. Apparently it is closer to the sound another dog would use. Roxy seems to respond much better to it. Pack order is really, really important, but PP's have already explained that. Roxy is not food driven either, which makes reward training a bit harder, but you just need to find something Moses really likes. Roxy does like liver treats, you can buy them in the supermarket, don't know if you can get them in your town?? The most popular treat at training is cabana, but Roxy is not so keen on that! Just a little bit so that the pup can send it down and continue to concentrate on what your instructing him to do.

Good luck, a puppy is hard work but so rewarding!