human
What are the best ways to prepare a sandcastle?
assistant
1.  Start with wet sand, and use your hands or tools to create a base for your castle.
2.  Add layers of wet sand and small stones to build up height and texture.
3.  Use seashells, pebbles, and other decorations to add color and detail to your castle.
4.  Let your castle dry in the sun for a few hours before adding additional elements like grass and seaweed.