Chloe is very unfocused while heeling. I've tried making it super fun for her, but it doesn't seem to be helping. Even in super low distraction places like inside our house, she still doesn't really pay attention to me when we are heeling. She heels very loosely, and I can't get her to look at me unless I'm talking to her continuously. Even then, she just sort of looks at me out of the corner of her eye. Any advice on getting focused and engaged heeling?