Give clear explanations.
You need to make sure that all of the explanations that you give about your background and your experience are precise and clear. If a high school senior can't understand exactly what you're talking about, you're probably making things too complicated. Remember, interviewers or hiring authorities don't have much reference to what you've done. If your answers are too complicated, too detailed, and unclear, it is too easy for the hiring authority to simply pass on you because she doesn't understand your explanations. Ask, "Did that answer your question?" if the interviewer appears to have not understood.
Close for the next interview.
Always, always, always "close" the interviewing authority for the next interview. You simply state, "Based on what we've talked about here, I am a great match for this job. What do I need to do to get it? " Never leave an interview without asking for the support of the person you have just interviewed with. Even if he says something like, "well, it's really not my decision," you need to come back and say, "Mr. or Ms. _, I wouldn't be speaking with you if you didn't have influence or you couldn't say 'no.' So, it is very important that you give me your promise that you will support me and promote me to the next interview."
Focus on the process of interviewing and don't worry about the result.
The interviewing process is to successfully go from the first, to the second, to the third, etc., interview, becoming, eventually, the choice of the hiring authority and getting an offer. Don't worry or focus on the result of getting a job offer—just focus on the next step. If you focus on the process, the result will take care of itself. You don't have to be concerned about offers if you do well on every interview. You can't control offers as much as you can control your interviewing process.
It's a numbers game.
Most people don't realize the massive number of interviews it may take to get a job. People start out like gangbusters and imagine they can get a job in the short period of time as a result of two or three interviews. It takes a lot of phone calls to get an interview and a lot of interviews to get a job. Get ready to work the numbers.
The vast majority of people have a tendency not to be aggressive enough in the interviewing process. Since you're already at emotional disease, there's a tendency to fear more emotional pain by experiencing rejection, so people are way too "soft" when it comes to asking for a job. They will destroy an interview by saying weak things like, "Well, where do we go from here?" or something like, "What is the next step?" instead of simply asking the cold, aggressive question of "What do I need to do to get the job?" or "When can I go to work?" If you're going to get refused (not rejected), you want to get it sooner than later so you can move on to the next situation.
"No" is the second best answer you can get.
Most job seekers are so afraid of rejection that they will worry and fret needlessly about their status during the interviewing process. After they interview, they wait, hope, worry, pray, and wonder, how they are doing. Do what you can to interview well, follow up well, and sell yourself as hard as you can. But don't be afraid of "no." The goal is to sell yourself to get as many "yeses" as you can, but if you get "no," that, too, is part of the process. It is the second best answer you can get. Quit worrying about getting "no" and spend your energy getting interviews and selling yourself well. You are going to get more "nos" than "yeses" anyhow, so keep track of the nos, knowing that they lead to yeses.
All you can do is all you can do.
Remember, you can control the process more than you can the results. When it comes down to the final decision to offer you a job, it is really up to someone else. All you can really control is getting as many interviews as you can, performing well on the interviews, and selling yourself hard to get an offer. Twenty-five percent of the time companies say they are going to hire someone, but they don't hire anyone at all. So, do all you can do, and don't worry about what you can't control.