You need to do research before the interview. First check the company's website, read recent news about the company. Second, think carefully about what questions you will be asked; prepare positive answers in advance. Third, be clear about what strengths, skills, and qualities; try to present a positive version of yourself, Fourth dress appropriately, try to relax, maintain eye contact, and be friendly and enthusiastic.
Fifth, Remember that a good question will show that you have done your research and have thought carefully about the requirements of the job.