OKay, I have an eight year old female GSD. When she was a puppy, we let her play with my uncles puppy. They got along fine. As she got older, she was fine with the dog she knew but not with other dogs. Except puppies, she seems fine with puppies. Well, this was never a problem since we lived in the country and not many dogs came around. Now we moved to a new house with yards around us. Our neighbor has a dog social dog, it is a mix breed, spayed female. Problem is, the two dogs share a fence. The neighbor's dog runs up and down our side of the fence, Keeli (My dog) will run up and down the fence also. She'll bark loudly. I'm not sure how to decipher her body language though, its so mixed up. Keeli's bark won't be aggressive really, just loud. Her tail will be up and wagging, ears forward, eyes bright and open. Mouth slightly open. I've looked up dog body language and I can't really decipher it. One day I saw them stop and sniff each other and Keeli nipped the other dog's lip. Also, if I'm ever walking her, and we pass by another dog, she will start pulling on the leash and barking loudly, sometimes her ears will be pinned back and she will show teeth, ONLY SOMETIMES THOUGH! But whenever she is alone with me, she is so well behaved! Is she being aggressive towards the other dogs? Is it too late to socialize her? If it isn't then what are some ways I can SAFELY socialize her with other dogs? Thanks!
(P.S.)- She is also not cat social. Please don't scold me for not properly socializing her, I understand now how I should have done that but at the time I didn't think we'd be moving and there weren't many dogs or cats around to socialize her with.