'Where's Lover Boy?'
That line in The Hunger Games, in particular, showed me how much this girl can do. When she says it and the camera cuts to her face, you see the psychotic gleam in her eyes, the pure enjoyment she's getting out of taunting Katniss. And she sort of laughs/snickers while she's saying it, adding to the threat of her character. The rest of her speech is perfect too, especially the malicious way she says "..the little girl? Rue?"
It brings home the terror of the story, too, that teens are forced to grow up in a world where some of them (like Clove) have no choice but to be a killing machine. And that's the worst part of it all--at the end of the day, they're all still just kids. Innocent. The way her attitude changes when Thresh attacks her illustrates that--suddenly screaming, crying for her companion, totally helpless. It really gets the point across.
PERFECT as Clove! I could not have been more impressed.