I observed my roomie playing the game Call of Duty 4 and observed how he seemed to react emotionally to what was happening to him as far as the game experience is concerned.
What I’ve noticed the most in him, as well as in myself when I play games, is that he seems to want to move with the character portraying him on the screen. He would actually try to lead forward to run faster and attempt to dodge bullets from the couch etc. I find this to be humorous, but non-the-less it shows that the game provokes these natural instinctual movments in players. In addition to that he would frequently talk back to the characters on screen. He knew that they couldn’t hear him and that it would have no effect, but it is something that people tend to do when they get caught up in the action. Even the events taking place in the game would prompt him to act in a certain way such as taking out a vendetta for a fallen teammate even though that teammate is completely fictional and only a computer program.