Sera was already half-closing her eyes even before the teacher started talking. She already knows what's gonna happen anyway. Well, she knows everything, as her archive of a mind keeps sending different information to her brain. Sera is halfway to sleeping, but she knows that some guy-Emer, his omniscience telling her, but she doesn't care anyways- behind her is going to flick a paper plane to her head. Without even raising her resting head on the table, she grabbed and clenched the paper plane, and also without reading the contents inside it, she wrote back and toss the crumpled paper where it came from. 

[i]Yes, I'm a part of that group. And yeah, the guy has to stop babbling already. Can't a girl get some sleep here? I don't really need this...[/i]

She knows what there is to know, after all, and she knows that the paper landed squarely on Emer's desk.