I am currently working on stand and loose leash walking with my pup in training. Currently so she can learn the behavior I have a treat in closed fist as a sort of lure to show her what I am looking for. She likes to sort of open her mouth and try for it even though my fist is totally closed. My question is, if she is still doing the other behavior, am I OK to reward her? Or is that going to further teach her she can mouth things. When she jumps or lunges for things she is not rewarded. Also, are there any more effective ways to hold a treat for this form of teaching?