have a tasty treat or toy in your hand and let your dog know you have it. Set your dog up a short distance away with someone holding him if needed. Have your hand full of goodies by your side and recall your dog from a short distance. As he comes towards you raise your hand swiftly above your head from your side this usualy gets the dog to pause in it's tracks at which point you click and throw the food behind the dog.
This also works with a toy or ball if your dog is that way inclined.
Once this is happening progress to clicking for a sit or a down, which ever you want.
Also practice your sits and downs at a distance as a seperate exercise.
Hope this helps.
Mark
