Alys Westhill spends a lot of effort on being unremarkable, which is more difficult than many would expect.  Her eyes show through any disguise as keenly interested and an unusual reddish brown color, her stature is short for westerosi women not even reaching five feet, and her rugged good looks come with a bit rounder cast of features than the typical sharp features found on locals. Were she to be encountered in less than her typical heavy winter clothing, or in brighter light than one tends to find in a fire lit tavern she would stand apart from the locals quite easily.