These tapes of captives ALWAYS are heavily scripted and to make sure there is no info disclosed as to location.
There could be something to the hand movements they were making, though.
I watched every movement and couldn't find anything. I am sure they were warned.
I wonder if their captors are aware of just how much they have messed in their nest along with the pali's nest. Wonder also why they waited so long with their demands - who is pulling the strings?