In the video, a person is seen placing their finger on a piece of pepperoni. The pepperoni is cut into small squares and is placed on a wooden cutting board. The person's finger is used to measure the size of the pepperoni, indicating that the pepperoni is approximately 1/2 inch in size. The person's finger is also used to point to the pepperoni, possibly indicating its location or significance. The video provides a close-up view of the pepperoni and the person's finger, allowing for a detailed examination of the pepperoni's size and texture.