Introverts will probably never enjoy an interview. However, they certainly can't avoid them altogether. You will therefore have to learn how to handle and prepare for interviews keeping in mind your introvert tendencies and strengths.
Before an Interview
For a few days before the interview you will have to practice. The most important point that you will have to prepare for is how to respond to the questions that you may be asked. However, you should also go beyond just rehearsing. Try to tap into your natural propensity so you can gather detailed information and digest it. This will allow you to be an expert on the organization and the interviewer.
Research everything you can. Doing this homework will provide you the advantage of knowledge and will build up your confidence.
On the day of the interview
In most cases, introverts will find the mystery involved the hardest in the interview process. Introverts will find it hard to deal with the process as it unfolds. Although it is possible to prepare for it to an extent and predict the questions which are the most likely to be asked as well as the format in which they would be asked, you would still have to face an unknown element while interviewing. It is therefore important that you minimize all potential surprises that you can think of. Given below are a few ideas:
Get Ready for Small Talk: Most introverts will admit that they dislike chitchat. However, as everyone knows, the initial part of an interview will always involve a small amount of small talk and conversation so that the interviewer can get to know you. You will have to be ready to deal with it as well as practice a few niceties with a friend beforehand.
Know Where You Are Going - A day before the interview, find out where the interview is to be taking place and ensure that you will be able to reach there well in time. If your interview is conducted locally practice reaching the site. This will provide you the peace of mind you need as well as conserve energy.
Bring a Portfolio and Notes: Ensure that you have written down some notes about the questions that you would want to ask your interviewer so you won't forget anything. You may also want to put together a portfolio, a binder with evidence of your achievements and key skills so that you will have something to rely on as you go through the draining process.
After the interview is over, you may be tired but will have a better chance of getting through and getting selected for the position.