I'm a size 9.5 at 6 foot tall, so I'm smaller than Paris Hilton :-).
Foot size is in general related to height, so a tall women has a
higher probability of having bigger feet (makes sense since the body
needs it).
Hand size is a bigger tell than feet anyway; but you
really have to be looking for it. It mostly shows in photographs
especially in shots with GG, when people can really look at the
hands closely without them moving all the time.