A lady does not put one leg on the other leg. It's not really acceptable for men or women to do this in professional business settings.
A lady crosses her legs at the ankle.
A lady wearing trousers and boots does not give you an opportunity to see her socks.
secondarily, properly cut trousers are NOT going to hike up above the top of the boot in your strange scenario
It doesn't seem that you understand how clothing actually fits and moves.
You have a fantasy about how you are going to see white socks in scenarios that do not make sense.
Asking the same question again doesn't change the response.