When we first put her into her high chair to play with the dough, she really wasn't interested. We have played with playdough a few times, but it's not always her favorite thing to do (though I definitely like the benefits for manual dexterity). Then again, maybe getting her hair out of her face would have been good too!
I showed her how to use the cookie cutters on her dough like JGM was on the counter, which definitely helped.
I will say that even if she wasn't into rolling out the dough and cutting out the circles, she was more than happy to eat the final product.