As your roommate receives the message, he decodes your communication and turns it back into thoughts in order to make meaning out of it
Its incredible, to see how what some one says is a code we undo to make sense out of it, and how fast it takes us to to un code, and this is are way as human to do it and it comes natural. But it is incredible to know other animal have they own way of talking and showing, the is direct in some ways as human.