As CBSE Class 12 practical exams approach, students are advised to focus on revising known experiments and understanding procedures, results, precautions, and applications. Experts emphasize the importance of laboratory records, project files, and viva preparation, stressing conceptual clarity and logical answers to 'how' and 'why' questions. Avoiding common mistakes like rushing, poor presentation, or memorized answers, and maintaining composure, honesty, correct terminology, and confident body language during viva sessions are key to boosting scores.