Let's start by transferring some concepts from product marketing to people marketing.
Marketing is a planning process based on exchange and needs.
The interview is one place where the exchange of needs begins. It actually begins much earlier, with motivating employers to set up interviews. But, for simplicity's sake, let's stick with the interview. You can plan for this exchange of needs that will be the major part of the discussion in the interview by anticipating what the needs will be. Here you are in a meeting with an employer.