What are the best techniques for applying a pine stain to achieve a smooth and even finish on wood surfaces?

To achieve a smooth and even finish when applying a pine stain to wood surfaces, it is best to sand the wood thoroughly, apply a wood conditioner before staining, use a brush or cloth to apply the stain in the direction of the wood grain, and wipe off any excess stain to prevent blotching. Additionally, allowing each coat to dry completely before applying the next coat can help achieve a more uniform finish.