In the video, a baby is sitting on a couch, and an adult is holding a pen in front of the baby. The adult then shows the baby the pen and then puts it down. The baby then grabs the pen and puts it in her mouth. The baby then covers her mouth with her hands. The baby seems to be playing with the pen and is curious about it. The couch is beige, and the baby is wearing a pink shirt. The adult is wearing a white shirt. The pen is black with a silver clip.