Brawling is the skill of untrained, unrestricted, and often unthought hand-to-hand combat. You can't be taught brawling, but you can learn through experience. Therefore, there are no teaching benefits applicable to brawling. There are also no maneuver modifiers or other moves. However, instincts will allow most creatures to at least fight with STR dice in brawling, so there is no untrained penalty.