A small young woman (5'1" and slender, 22 yrs old) with a small high voice and small timid mannerisms, frequently to be found with at least one textbook and her laptop open in front of her, the latter most often running MatLab.  An unmistakable spark of analytical intelligence often lights in her clear green eyes, her medium-brown hair is kept just long enough to mostly hide her face behind if she should feel the need to, and a subtle spangling of freckles on her cheekbones and the bridge of her nose is typically only visible when she blushes, which is often.  The most daring color in her wardrobe is faded denim blue jeans; generally she's clad in combinations of cloud grey and mouse brown and muted off-white.  For the most part she speaks when she's spoken to, or if the conversation at hand pertains directly to one of her areas of expertise, but even when she does, her voice is a breathy, hesitant little thing, and she makes eye contact only in brief flickers.  Conventionally, pleasantly, unremarkably pretty, yet well accustomed to being overshadowed by the far more gregarious, extroverted personalities that form her immediate social circle - until something makes her smile, that is, and her face lights up like the sun.