How can I get my character, like in a newsroom to look at camera 1 - then look at camera 2 and then back to camera 1 without slowly moving his head to camera 2 in preparation for the switch and then looking back to camera 1 in preparation for that switch.

So, scene - Straight on.  I want him to turn to camera 2 and then back to camera 1.  I have the camera switch in the keyframes, but "look at" - I can't seem to keep his head staring at the camera that is filming him.  Instead, he starts to look at the other camera in prep for the switch.  (tweening? I think it is called in Flash).

Thank you in advance. 

Rodney