well, since she's a female, she probably (not that this is true 100% of the time in any way, shape, or form) ruminating on her appearance. for example, she could say something like "she looked down and caught a glimpse of her long, recently shaved legs striding foreword" etcetera etc...

good luck, hope it helps!
ps just think of times when you are thinking of your apearance -- it doesn't have to be a block of text just about her, but sort of include shit along the course of your story
