The Dandie Dinmont Terrier's low-slung body belies his big-dog confidence. With typical terrier instincts, he'll give chase given the chance, but needs only moderate exercise on a leash or in a fenced yard. He's affectionate with his family, enjoys a good romp and is calmer than some terrier breeds. Your Dandie Dinmont puppy, with his very short legs, may seem awkward at first and he's not built to be a marathon runner, even as an adult. He responds best to motivational training with positive reinforcement.