In that brief flash of aglance, his face held nothing of interest - it was as if she had called his name, and he'd looked up in involuntary response, already having decided not to answer.
She has the gift of communicating, subtly and immediately, a broad range of feelings: happy, hurt, stubborn, forlorn, any or all of these in aflash, with just a flick of her head, a sigh, a glance.