In the video, a person is seen petting a dog while it is wearing a harness. The dog is standing on a blanket and appears to be wagging its tail. The person is asking the dog questions such as "Who's a good boy?" and "Is your tail wagging?" The dog seems to be enjoying the attention and continues to wag its tail. The person also asks the dog if it is happy, to which the dog responds positively. The video captures the interaction between the person and the dog, highlighting the dog's wagging tail and apparent happiness.