Hi , I would everytime that you feed her. is she not taking any notice of you? If not, try cooking up a sausage and cut it up into small pieces,( because it is warm she will smell it from miles away) as you go past her drop a small piece near her, as soon as she realise there is food there she will start to wonder were it is coming from, so with a small piece in your hand let her use her nose to find it, as soon as she dose tell her to sit and if she sits give her the treat (let her figure out what you want her to do). She will soon realise that if she takes notice of you she gets food.