Tahn takes out his own mundane supplies in order to assist Nathan in completing his work. He botches it badly, smearing too much orange in with his red and making it look more like she was eating a messy dessert. He wipes away as much as he can and lets Nathan resume his superior work. Once completed he nods and shakes his sap to settle the weights at one end. He pulls it back up into his sleeve so that it won't show until he is ready to use it.