She’s just trying to play with you like she would other dogs, she just needs to be taught that you are boss and that’s not how you like to play. You can either tap her on the nose. I’ve had good luck with genly holding their mouths closed and telling them no. Sometimes puppies that are very rambunctious they will misinterpret the tap on the nose as playing. Either way you go, just be consistant. Don’t let her play like that one minute, then discipline her the next. If you always let her know it’s not acceptable she should catch on pretty fast.