The video shows a person holding a knife in their hand. The person then proceeds to sharpen the knife using their thumb. The knife appears to be a Swiss Army knife, which is known for its compact design and multiple tools. The person's thumb is used to sharpen the blade, indicating that they are likely familiar with the knife and its features. The action of sharpening the knife suggests that the person is preparing it for a specific task or activity. The video does not provide any additional context or information about the person or their intentions.