Job search techniques change, the labour market changes and job descriptions change. But what more or less stays the same is the job interview. It’s your chance to sell yourself. The first 30 seconds of a job interview are the most important – so if you want to be a cut above the rest you need to be on the ball. Rob Yeung, a business psychologist, maintains that an interview is all about the three Ps. “You need to prepare, you need to practise, and then, on the day, you need to perform.”