The document provides instructions for trying in a full veneer crown. Key steps include: 1. Checking proximal contacts for tightness and adjusting as needed. 2. Examining marginal adaptation and ensuring the crown fits without binding. 3. Assessing stability and making any adjustments for rocking or rotation. 4. Checking occlusal contacts using marking materials and adjusting any interferences. 5. Evaluating esthetic contours and characteristics before cementation.