What is the primary use for a show stick?

A show stick is primarily used to assist in placing an animal's feet correctly during a livestock show. It helps ensure that the animal stands in an optimal position to display its conformation and overall appearance effectively to the judges. By gently guiding or nudging the animal's legs, exhibitors can ensure they have the ideal stance, which can significantly influence the judges' perception and scoring of the animal.

The other options do not serve the primary purpose of a show stick. For instance, while some tools may be used for cleaning or managing feeding, the specific design and function of a show stick focus on positioning animals for showing. Lastly, using any tool as a means of hitting an animal is inappropriate and not reflective of proper livestock management or care.