Drawing geometric 3D shapes can be a fun and engaging artistic endeavor. Follow these steps to create your own geometric 3D drawing:

1. Start by selecting a specific geometric shape you want to draw in 3D, such as a cube, pyramid, or sphere.

2. Begin with a basic outline of the shape. For example, if you're drawing a cube, sketch a square in the center of your paper.

3. Next, add depth to the shape by extending lines from the corners of the square. Connect these lines to create the sides of the cube, giving it a three-dimensional appearance.

4. Use shading techniques to add depth and dimension to your drawing. Determine a consistent light source, such as the top-left corner, and imagine where the shadows would fall. Darken the areas away from the light source and leave the areas closer to the light lighter. This shading will help create the illusion of a three-dimensional shape.

5. Experiment with different angles and perspectives to enhance the 3D effect. For example, draw a cube from a corner view or a pyramid from a top-down perspective. This will give your drawing a more dynamic and realistic look.

6. Consider adding additional geometric shapes or patterns within your 3D drawing to create more complexity and visual interest. This could involve overlapping shapes or incorporating patterns on the surfaces of the objects.

7. Take your time and practice regularly to improve your skills in drawing geometric 3D shapes. Experiment with different shapes, sizes, and techniques to expand your repertoire.