Final answer:
The best tip for beard design is to work with the natural hairline, as it provides a look that complements the facial features.
Step-by-step explanation:
A practical tip for beard design is to work with the natural hairline. This approach allows for a more natural and flattering look that suits the individual's facial features. By following the natural hairline, you can create a beard shape that complements the face rather than working against the natural growth patterns of the hair. While cutting hair short or using a single tool may have their own benefits, they do not necessarily lend themselves to the optimal design of a beard. Cutting the hair to the same length can contribute to a uniform look, but it is the natural hairline that often dictates the most aesthetically pleasing beard outline.