How can I achieve a glossy finish by using lacquer over paint?

To achieve a glossy finish by using lacquer over paint, first apply a base coat of paint and let it dry completely. Then, apply a layer of lacquer over the paint using a spray gun or brush. Make sure to apply thin, even coats and allow each layer to dry before applying the next. Sand the surface lightly between coats to ensure a smooth finish. Finally, let the lacquer cure for the recommended time before handling or using the painted surface.