She probably was sub-vocalizing a pack of lies. check this out...
http://members.aol.com/nonverbal2/eyeblink.htm
Neuro-notes. We blink faster when excited because eyelid movements reflect bodily arousal levels established by our brain stem's reticular activating system (RAS). Emotion from the limbic system stimulates the RAS to act on our midbrain's substantia nigra, which releases the excitatory chemical, dopamine, to the superior colliculi (Karson 1992:417). Thus, we bat our eyelids faster in courtship (see LOVE SIGNALS III), when speaking in public (see STRANGER ANXIETY), and when lying (see DECEPTION).
She was obviously having a hard time playing nice -- all those evil thoughts in her head had her looking and acting so uncomfortable.