What are the best techniques for achieving a smooth finish when applying white paint with a blue tint to a surface?

To achieve a smooth finish when applying white paint with a blue tint, it is important to properly prepare the surface by sanding and priming it. Use high-quality paint brushes or rollers to apply thin, even coats of paint, allowing each coat to dry completely before applying the next. Avoid overworking the paint and use long, smooth strokes to minimize brush marks. Additionally, consider using a paint additive like Floetrol to improve flow and leveling of the paint.