personally I instruct my subs over messenger to acomplish various tasks.
sometimes I request photo documentation of the completion of their tasks.
webcams help alot.
in the end it all boils down to trust. I suppose that they could just fake the whole thing but basically that would be a waste of their time...
It Does really boil down to the trust that the two build between them.
And through that trust the Master knows that the online girl will do what tasks are given her.
