Here she plays an air-headed hippie, but in the next one she is an entree.
Two investigators, one a young Joe Don Baker,  approach Yellow, asking her about a woman who was
  Lots of luck.  She gives them this dippy, other-worldly smile and tells them she "doesn't let things
like that clutter my mind."
Maybe it's all in the eye of the beholder, but contrast this photo with the one above.  I had a "Whoa Nellie!"
moment when I viewed this still.  Linda's portrayal goes from a pretty ding-a-ling to a smokingly sultry vixen.
A 1970s version of "Have a Nice Day!" (as in "whatever'), as the frustrated investigators leave, shaking their