Once they learn the behavior, it good to not treat them every time, just give them verbal praise. This actually results in stronger learning than if you gave them a treat each time, but until your sure they understand the behavior continue treating. I think your little girl is telling you she's smart and needs "higher" education! Here's a website that tells you how to teach other behaviors, and you girl sounds like a prime candidate!
Dog Tricks! Shake, Crawl, Beg, Wave, Kiss, Roll Over, Take a Bow, and more!