At first glance Tohsaka looks like an average (if very well put-together) young Japanese woman. Her dark hair falls in styled waves about her shoulders. Her skin is fair and unblemished while also diligently taken care of. Rin's nails are well manicured, and typically she doesn't wear much makeup. Her frame is petite, and her height is roughly the same as her nation's average. One could easily mistake her for frail if not for the way her athletic muscles betray themselves when she flexes or strains for something. Typically a soft layer of fat smooths over any evidence until this happens. Especially below the waist where her curves are more noticeable. The only thing that stands out as unusual at first glance is her eyes. Vivid blue and not common because of the trait's recessive nature. However the Tohsaka's blue eyes have been in the family for generations. Likely due to mingling with mages in Europe while learning under Zelretch or attending Clocktower.
Because of her "uncute personality" and viewing her appearance as "just another tool" Tohsaka tends to dress in trendy/girly outfits. Most of the time she seems to favor modest blouses paired with bottoms that will show off her legs — whether that be shorts or mini skirts depends on her mood. If the weather is cold she's likely to sport thigh high stockings or semi-opaque pantyhose in order to give her coverage while also still hinting at skin. Rin also seems to like changing up her hairstyle every once in a while. Sometimes favoring braids, buns, or ponytails over the usual half-up side-ponytail look that is her most common style.
Rin typically comes off as cold and polite in most conversations, but if provoked can get heated, loud, and antagonistic. As such most may find that she can have a very hot-and-cold personality. Some may find her outward behavior "honor student" like while others have taken to calling her, "the Red Devil".
Vocal Reel — No matter which "side" of Rin Tohsaka you meet, there's always something consistent in the way she talks. She's not overly-formal unless she thinks it'll net her something, but she's also not crass unless provoked. Some have likened her speech patterns to "bossy," "nagging mom-type" or even "pushy older sister".