Yes and no. Yes for things like housebreaking-- one dog models the behavior for another. No for things like sit on command, stay on command. Your pup is too young to grasp the concept of you commanding other dogs and watching them respond and then associating that with what you wish her to do. GSDs are super-smart, but a young baby puppy is a bit too young to be able to be more obedient for commands due to watching older dogs. I think your pup has some wonderful genetic biddability.