Sharpening plays an important role in influencing how the human eye interprets a photo and it is the only way to create the illusion of higher definition and detail. Also, much like we use light, color, and composition, it is an extremely effective way to guide the eyes of the viewer to wherever you want them to focus.
The first question to ask isnt how to sharpen but when to sharpen. Any retouching, compositing, coloring, and any other edits youve made should be... more