In the video, a small dog is seen wearing a blue birthday hat with the words "Happy Birthday" written on it. The dog is being held by a person, and the person is petting the dog's head. The dog appears to be enjoying the attention and is looking around. The hat is a bit too big for the dog's head, but it seems to be comfortable. The person holding the dog is wearing a red and black plaid shirt. The background is not clearly visible, but it appears to be an indoor setting.