My 8 month old GSD has horrid manners, no really, they really are terrible and I know its my fault. I need to learn how to teach him to give distance. First of all he gets way too excited to see anyone in the house besides me. He completely invades everyone's personal space that he comes in contact with. In the house if you're on the couch he's basically all on top of you, completely making you uncomfortable. Its frustrating because i hate for my house guests to have to deal with it and I dont like it when he does it to me. I've tried having guests ignore him, correcting him myself and also treating when he backed up and sat/laid down but then he will just do it again after the treat. The other day I took him on a 3 mile walk because i knew i was having company and I didnt want him to be so amped up, but he came back in the house and acted like we hadnt went anywhere. Any suggestions? I really need him to calm down and be easier to be around.