The video shows a close-up of a person's hand holding a piping bag filled with yellow buttercream frosting. The person is using a star-shaped nozzle to pipe the frosting onto a cupcake that is sitting on a wooden surface. The cupcake is in a pink and white polka dot paper cup. The frosting is being piped in a circular motion, starting from the outer edge and moving towards the center of the cupcake. The person's hand is steady, and the frosting is applied in a smooth, even layer.