Vivian: Oh...Look honey, I have a runner in my pantyhose. Oops! I'm not wearing panty hose!
Woman at elevator: Shut your mouth, dear.
Edward: What makes you think I am a lawyer?
Vivian: You have that sharp, useless look about you.
Edward: You can't charge me for directions.
Vivian: I can do anything I want, baby. I ain't lost.
Answer: As the other answer indicated, it was part of her cheap hooker persona, but it also makes a greater impact on the audience when they see Vivian undergo her "transformation" with the classy designer clothes, toned-down make-up, and her own nicely-styled hair.
raywest ★