Sonja wasn't really sure what to say next. In the novel he was reading, the protagonist would have probably said something charming and asked her to dance, but he didn't really have anything particularly charming in mind. He could probably ask her to dance, though. He knew how to do that. Before he could even get the words out of his mouth, however, he was surprised by the sound of someone shouting from elsewhere in the room. 

[i]After seventeen years of being forgotten, you remember me now!?![/i] 

He faltered a bit when he heard that, turning toward the sound. The view was blocked by a few other partygoers, so he couldn't see who had shouted. "That was...unexpected. I guess there was an argument or something." When the commotion died down, he turned back to the girl. "Ah...anyway..." He bowed slightly, extending a hand towards her for her to take. "Would you care for a dance, perhaps?"