Hi ladies thanks for your replies. Yes it's when she gets excited she tends to nip and mouth. She'd nearly take your arm in her mouth. She doesn't hurt us usually an odd nip can be sore though. And the jumping is un real. I'm going to try the yelp and ignoring. I ve tried closing her mouth and saying a firm no. Which worked with our terrier. Ive tried putting her out when she dies it too.