To create depth in a paw print drawing, you can use shading to add shadows and highlights. Pay attention to the light source in your drawing and shade areas that would be in shadow accordingly. Use darker shading around the edges of the paw print to create a sense of depth and make the paw look like it's sitting on a surface. You can also use techniques like cross-hatching or stippling to add texture and depth to the pads and toes of the paw. Finally, consider using a white or light-colored pencil to add highlights to the claws and other areas that catch the light.