Rebecca,
I have put Kira through CGC and loose leash is important but a really big thing is meet and greets. I was lucky Kira was natural AT FIRST. She started to get stubborn so I had to use a very stern voice when giving her commands. My reccomendations are to use a choke chain(not prong color or halter those are not aloud for testing) and walk him the minute he begins to lead give a quick tug on the leash and say Heel. Keep repeating that so he knows that when he walks in front of you he is not behaving well. As he keeps walking beside you sound excited and say good boy heel good boy. Then slowly loosen the leash. Make sure you yourself are relaxed. You are also wanna walk in variable speeds. That is on the test too. Walk slow then medium then really fast.
