Despite the Simon & Garfinkle poster on the wall, I think this little gal's getting ready to rock.
Perhaps she was a fan of Simon's early, rockin' sides (True Taylor, Tico & the Triumphs, Tom & Jerry). Is that a Hagstrom she's playing? I believe she's making a gang signal with her right hand. Anyway, innocent though she may look, a few years on the road and I think she'll end up
looking like the gal in Gillian's Found Photo #32. Not visible in the shot, but I'd bet she's wearing boots from Biba, just like #32. Definitely not a frontwiper.