The average person puts only 25% of his energy into his work.
The world takes off its hat to those who put in more than 50% of their capacity,
and stands on its head for those few and far between souls who devote 100%.
Consider the on-campus interview for a moment. You will be spending twenty to thirty minutes in a tiny cubicle with a total stranger. This person will subsequently decide whether you will ever have the chance of working for their company. The best you can hope for is to avoid being disqualified, which only takes you one step further into the interviewing maze. One little mistake, one little error, and you could be history.
Actually, the entire process seems rather absurd, except for the fact that you will not get a job without correctly playing the interviewing game. And on-campus interviewing is often the starting point for the interviewing process.
On-campus interviewing is not simply meeting with three or five (or even ten) companies and then picking the one where you want to work. To maximize your on-campus interviewing success, you need to first maximize both the quality and quantity of the interviews, and then maximize your interview efficiency. It is not enough to just "show up" for the interviews and hope that someone will miraculously offer you a job. You have to perform at your peak to gain mileage from on-campus interviewing. So don't just read this chapter, read all of the chapters related to interviewing.