12. A non-transitory computer-readable medium comprising instructions to cause a computing device, in response to execution of the instructions, to: receive a plurality of facial motion parameters and a plurality of head gestures parameters, respectively associated with a face and a head of a user; and drive an avatar model with facial and skeleton animations to animate the avatar, employing at least a head bone and a torso bone connected at a joint and using the facial motion parameters and the head gestures parameters to replicate a facial expression of the user on the avatar, that includes impact of head post rotation of the user; wherein the plurality of facial motion parameters depict facial action movements of the face, and the plurality of head gestures parameters depict head pose gestures of the head; wherein to drive comprises application of head rotation impact weights while driving the avatar model with facial and skeleton animations; and wherein application comprises application of head rotation impact weights from a head rotation impact weight map pre-generated employing the at least a head bone and a torso bone connected at a joint.
19. The computer-readable medium of claim 12 , wherein head rotation comprises yaw, pitch or tilt.