Hi there!! My little girl is 16 weeks and the only two comands she knows are 'no' and 'come'. She refuses to learn anything else. All I want is the basic sit and lay down. I've been training my pets for years, and have never had this problem before. She won't train for any kind of treat (she walks away if I don't give it to her after about 15 seconds) or praise or toys. I just don't know what else to try. Any suggestions?