I have had my German Shepherd puppy for about 2 weeks now and I have a big problem holding his attention. He still doesn't respond to his name and when I want to train him he is very easily distracted. Also, on walks for the first week, I almost didn't need a leash because he followed me everywhere outside. Recently, however, he started wondering off and would prefer to do anything but follow/listen to me. I've tried the use of treats but after the third one he loses interest in them. I was wondering if there were any techniques to help with this. he gets vaccinated Wednesday in which he and myself will be enrolled in obedience and manners class. Any suggestions of what I could do?