According to Osho, pride and humbleness are two poles of the same egoic split. When you stop enforcing separations and allow the inner opposites to merge, the urge to be proud or to appear humble disappears, leaving a natural simplicity. Authentic humility is not practiced; it flowers from awareness where masculine and feminine, and all dualities, flow together.
When you accept all parts of yourself, you stop needing to be proud or pretend to be humble, and a quiet, real humility appears by itself.