Machinima with ogredotnet

Im trying to pull a machinima project with ogredotnet (the style of red & blue and trashtalk) actually is for a virtual host program (in which children can interact with a realtime CGI host in a museum ) , I wonder if someone else in working in a similar project?

Anyway I was wondering how can you add face animations, at the same time that body animations? do they have to be separate entities?