In the video, a person is seen using a hot glue gun to melt crayons. The person is holding a yellow crayon and placing it into the hot glue gun. The crayon is then melted and the melted crayon is used to draw on a piece of paper. The person repeats this process with several other crayons, including red, pink, purple, blue, and green. The video shows the person using the melted crayons to create colorful designs on the paper.