First post... My dog is a little over a year old and she is perfectly fine with me, wife and select family members. But when we take here out she is somewhat shy with others. If someone places their hand down, she will sniff and then try to bite (more than nip) then follow it by growling and barking. We tend to grab her in time but I believe she would continue to try an bite the individual if given the chance. Any ideas on how to work on this. We do take her out and about quite often.