To provide a guide robot explaining an exhibit to meet a visitor's request.

The guide robot is provided with a photography means 50, a face detecting means 71 detecting the face of a visitor 90 through an image, a face direction detecting means 72 detecting the face direction, an utterance behavior determining means 73 determining the utterance content and behavior of the robot, an utterance means vocally outputting utterance data, and a head part rotating means changing face direction by rotating the head part 10. The robot changes the face direction by rotating the head part 10 during the explanation of the exhibit 91 and determines the utterance content or the behavior thereafter based on the face direction of the visitor 90 at that time. If the guide robot turns the face to the visitor 90 in the middle of the explanation, the visitor 90 turns his or her face to the robot from the exhibit 91 in response to the robot's movement. In the case of no reaction from the visitor 90 even if the guide robot turns the face to the visitor 90, it can be determined that the visitor 90 does not listen to or has no interest in the explanation.