My female Tinka, chewed fingers and chased feet up until about 8 months old and then she stopped. Now my little guy Tyke, he likes to bite noses. He is only six months old and I am hoping that he will grow out of it as well. He doesn't acutally bite your nose, but he lunges forward towards your face and if you pull away, his teeth can graze your skin. If you sit still, you just get a wet mouth around your nose (delightful) then he proceeds to give huge amounts of kisses.