Exposed brick walls add rustic texture, warmth, and character, acting as a natural focal point with grainy warmth and fine shadows. They offer durable surfaces that hide dirt well but can be rough and harder to clean. Brick absorbs sound, which can reduce echo but might dampen brightness. While brick enhances cozy aesthetics, it often requires sealing to prevent moisture issues. Consider lighting carefully, as bricks can be dark and need layering to avoid gloominess.