You can try saying something like, "You know what else feels really good?" then show her what you like by guiding her hand under yours and letting out some little moans of pleasure. When she does something that you do like, moan a little, if she goes on to something else too soon, say, "Don't stop, that was feeling soooo good." And when you're done, make sure she knows you appreciate her efforts, say that it was wonderful or that she made you feel so good. Little bits of communication like these will open up more communication in the future. Someday she'll learn your body and really get into getting you off!