What does Frannie say about Sean's ability to dance and how she sometimes wished she could live in silence?

The girls say that Sean is really good looking and ask if he can hear anything at all. Frannie says that he can't and they are obviously disappointed at the news. One of them says that has to be the reason he hasn't been trying to talk to them, and Frannie says she wants to tell them that he hasn't tried to talk to them because he isn't interested in them.