How do I properly apply caulking to a shower to prevent leaks and maintain a waterproof seal?

To properly apply caulking to a shower, first clean and dry the area thoroughly. Cut the tip of the caulking tube at a 45-degree angle and apply a smooth, continuous bead along the joint. Use a wet finger or caulk tool to smooth the caulking and remove excess. Allow it to dry completely before using the shower to prevent leaks and maintain a waterproof seal.