Yeah I don't think it's dominance either. It could be that he wants to play even. I do this with my TF alllll the time. I'll turn and just stare at him without blinking and start moving slowly tward him. His little nub will move, then he play bows and barks, and then I go "BLLLAAAAHHHH!!!" and run after him and he runs around like a crazy dog. And then I tackle him, and it's a fun little game.