Casual/Jazz Funk look - Pleated skirt, pussy bow blouse, v neck jumper.
Preppy - 3/4 length chino type trousers in pastel shade, white or pastel pinstriped fitted shirt or batwing or slash neck top, loafers.
Hair, side parted, flicked or corkscrew curls. Make up, Electric blue mascara & eyeliner, frosted pink eyeshadow, very strong blusher striped from temple along cheekbone, frosted pink/purply lipstick - think Boots 17 Twilight Teaser or Rimmel Heather Shimmer. I'm pretty sure you can still get Twilight Teaser!
Or any of Madonna's various 80s styles.
Ra-Ra skirt, lacy footless tights, peeptoe bow shoes, slash neck T-shirt, crimped hair, maybe side ponytail, headband made of plaited fabric or coloured elastic. Big earrings. Cerise lipstick, similar coloured blusher (again with the striped look), eyeshadows in blues, corals, pinks, purples - two colors or more.
Blitz scene if you're feeling brave - think Boy George/Steve Strange/Marilyn (before you say they are all men, I don't think that's relevant in this case 