Just make sure that you are showing her that she is pleasing you. Them dogs live to make you happy and will do whatever you want as long as you show them you are pleased with it. A couple of easy taps to the nose till she takes a little snap at it should get her to jump right on it when you throw.

If it has been after a few retrievals she may also just be showing you that she needs a break. Pups aren't completely in the "working" stage. You need to make sure she is having fun in the early training.

Also, a little forced eye contact (pinning) is a good way to remind them who's boss. So just remember to keep it fun while she is young and all pups go through a phase of challenging the owner, like a teenager challenging it's parents.

I agree with muskiemaster. Also. Try using wings from the birds you want ur dog to be able to hunt. Dogs are natural hunters and scent is their biggest advantage. The scent from the dove,pheasant,ect. will trigger that dog. Your dog will go crazy and she'll wanna sniff all over the place. I tie a wing from a pheasant shot the year bfor onto the dummy. It gives the dog a real look and they can get the scent. Give it a try. Be real enthusiastic and praise ur dog very much when it does everything right. Just like ur wife would to you.. Get my drift? Dogs love positive attention if you treat the dog good and get it all pumped up its only gonna be better when its time to step into the field.. Best of luck