In the video, a baby is lying on the floor while a person is holding a paper plate with a smiley face drawn on it. The person is moving the plate around in front of the baby, who is looking up at it with interest. The baby seems to be enjoying the interaction and is moving its arms around. The person continues to move the plate around, and the baby keeps following it with its eyes and movements. The video captures a playful moment between the baby and the person, with the baby's curiosity and delight being the main focus.