Nancy1999 is right, running off is intrinsically rewarding, so it will probably take some work to teach your dog to return reliably. Thor learned "Come" pretty quickly, but (1) he's a timid dog, which helps tremendously, and (2) we work on it constantly.
I would suggest training your dog on a long retractable leash at first so she can't get too far away from you. Bring the tastiest treats she is allowed to eat, and always reward her when she returns to you. Never scold your dog when she returns to you, since she will simply associate her return with something bad.
You can try a few other methods to get her to come back to you: try getting low to the ground, and making strange high-pitched noises. Hopefully your dog will get curious and come investigate.
Now that I expect Thor to Come on command, I do punish him if he doesn't return, but I'm careful to do it without much fanfare or emotion. I go get him (as people said, I do NOT chase him, if he runs away, I stop walking for a bit and then approach him slowly), and then put him back on his leash for a minute. Sometimes I will actually leave the park. |