In the video, a young girl is seen holding a phone in her hand. She appears to be showing something on the screen to the camera. She then proceeds to demonstrate how to crack her knuckles. The girl seems to be in a casual setting, possibly at home, and is wearing a black shirt. The phone she is holding appears to be a smartphone, and the screen is visible but the content on the screen is not clear. The girl's actions are deliberate and she seems to be explaining the process of cracking her knuckles.