Always remember you're braver than you believe, and stronger than you seem, and smarter than you think. ----Winnie the Pooh
Try to think that it's not that important: there will be other interviews in future and it's not the end of the world if you don't get this job.
Preparation is key - the more preparation you have done, such as working out answers to common interview questions, and doing careful research on the organisation and job, the more relaxed you will feel.
Some people swear by visualisation. The night before, visualise yourself undergoing the whole interview, step by step, and imagine everything going really well, you answering questions confidently, and ultimately getting the job.
Dress smartly but comfortably. If you look good, you will feel good.
Adopting power poses beforehand can make you feel more confident at interview. Standing upright with hands on your hips, leaning over a desk with hands firmly on the surface, or steepling your hands can increase ,decrease stress, and make you feel more in control, more confident and more assertive. Practicing power poses right before an interview can also increase performance. Research at Harvard Business School found that holding power poses for two minutes before interview led candidates to be evaluated more favourably and increased their chances of a job offer by 20%. So if you’re worried about a job interview or presentation, strike a power pose a few minutes beforehand (not of course at the interview!) but in the washroom, or before leaving home.
Start the interview in a positive manner - smiling, eye contact, a firm handshake at the start will help a lot.
以积极的态度开始面试 - 微笑，眼神交流，开始时一个坚定的握手会有很大帮助。
Don't worry too much about making a mistake: nearly everyone fluffs one question and research suggests interviewers prefer candidates who come across as human to those who appear "plastic perfect".
Professor Sian Bellock investigated why our performance reduces under pressure. "Getting people to write about their worries beforehand ... can really help...so they are less likely to pop up and impact your performance.".