I adopted a puppy from the shelter when she was 6 weeks old.....she's now three months. I waited until she had all her shots before I took her out for walks. At first she liked it and I had no trouble. I recently took her to a dog park to try and socialize her with other dogs and she seemed scared, never leaving my side for a second. Now whenever I try and walk her, she just sits. I dont want to pull her because I dont want to further complicate the training. Is it because she is going through a rebel phase and doesn't want to do as I say or is it because I took her to the park and shes scared that a walk means scary little chihuahaus that are smaller than her How can I get my dog to walk on the leash without having to pull her and try and course her. And how can I socialize with other dogs if she's scared of them?