Embodiments of the present disclosure relate to automatic guide vehicles (AGVs) that are capable of interacting with human operators. Particularly, the AGVs can follow a human operator, lead a human operator, and receive and react to gestures from a human operator. The AGVs switches directions of moving to provide human operators with easy access to components of user interface on the AGVs. The AGVs are also capable of avoiding collision with other AGVs by yielding to AGVs with a higher priority level.