Air snappers or teeth clackers - Page 3

I keep her and the other dogs seperated if I can. when I bring her around to the front yard , she sees the other ones thru the fence and starts Snapping her teeth. If she doesn't like something , she snaps her teeth. But , as I said , she is a whiz on the leather gloves and 
all. Her ball/prey drive is like.....wowwww.........

I am curious about the subject of this topic. I have a female puppy in this litter that does the air snapping. Her two sisters dont do it, just her. And she only seems to do it toward my face. I am thinking it is her excitement, because we are so close, and she doesnt know what to do. She is 11 wks and has done this for several weeks now.