From Rusty LaFrance
Gently hold her lower jaw and put your thumb on top of of her tongue. As soon as she stops, back off. Do this consistently and she will soon stop trying to herd you wtih her mouth.
From Karen Clouston -- Teach them to "Leave It"
By working through these steps, she will learn the words Leave It, and what
it means and it is amazing how having something constructive to do decreases
From Joey Fineran
When a dog is mouthy, keep a plastic lemon (full of concentrated lemon juice -- in the produce section of the grocery store) handy and when they try to take your arm/hand/LEG! squirt the lemon juice in their mouth. Three times is all it took for the dog they were talking about. After that, just the sight of the "lemon" was enough.
From Fran Peck
Mouthing is how puppies explore their world and learn its limitations.
To work on the mouthing I would "channel" her mouthing, not try to "correct" it. I do this by getting a piece of burlap, roll it up tightly into an 18 in by 2 in roll and this becomes her "mouth" stress toy. You can also use a rope toy. When she starts to mouth your hands, crack out a "NO" "here, play with your toy" and swap your bodily part for the burlap roll. You can then also use the burlap roll to motivate her to sit or down or come or all sorts of things.