Learn the company and its products before you walk in. Interviewers notice candidates who can talk about what the insurer actually offers and who it serves.
Prepare two or three real examples that show communication, persistence and handling a difficult conversation. For sales roles, be ready to explain a simple product to someone who knows nothing about it.
Be honest about your experience. A clear account of what you have done, and how you want to grow, is stronger than an inflated one.