Find something that will get her attention, a clap of your hands, pennines in a can, spray bottle... whatever works. As soon as you have her attention, give her a command. In this situation, I would use "no." It's a magical word that once learned, can be used in a multitude of situations. After the no, redirect your pup to an acceptable task, like chewing a toy.
Also, spend time training her at home everynjght. My favorite time to train with a new pup, mealtime! They're eager, and it's a great time to practice
__________________ Littlest JakJak 
We miss you Kaji 
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