Job interviews are negotiations. If we view the job interview as a sales process, many of the same lessons apply as in any other attempt to sell a product.
Successful salespeople are careful to 'qualify' their prospective customers.
That means doing research to figure out whether the product they have to offer meets their customer's needs. As students look for jobs they should learn as much as they can about prospective employers from other people who work for those companies, from people who do business with the companies, and, most importantly, from the people who are interviewing them. Rather than looking at an interview as time to put on a performance, to demonstrate all of one's talents, one should regard an interview as a chance to learn about what the potential employer is looking for. Job applicants need to think ahead of time of what information they need before they can make an attractive proposal to a possible employer. If someone wants a job for three months before going into the next year of school that is quite different from looking for a place to gain experience or even spend one's entire working life.