We are having the same issues with Bailey. He is now almost 12 weeks old and loves the attach our feet and pants. He also just loves to bite our hands, arms and even our faces. My wife and I fortunately don't have any small children at home, but she is getting very frustrated. It is good to hear that this is a typical puppy issue for many puppies, so hopefully, Bailey will soon outgrow this. We have tried yelping, "DON'T BITE", leaving him alone, and nothing has worked consistently. He is a VERY active little boy. Interestingly, he seems to listen to me better than my wife. She tends to pick him up more and want to cuddle with him, and I believe he "reads" this as puppy play. Overall, he is a good puppy, and I am confidant (and hopeful) that this will get better soon.