Before you go in for your interview, do some deep breathing exercises if you feel nervous. Lay off the coffee; it will only agitate you more. Do a last check in the mirror to check you have nothing caught between your teeth, and give yourself a pep talk if necessary.

Make this your aim rather than to impress your interviewer. They will have had people turning themselves inside out to show off all day. Instead, try to find something about you that the interviewer can relate to. If possible, do some homework on the interviewer, and try to find something not too obvious to drop into the conversation that will strike a chord.

Communication is something that is going to be critical. As well as being able to answer the questions briefly and intelligently, by maintaining eye contact and not fidgeting, they will see in you someone who will have the ability to communicate within the role that they are recruiting for. This is especially important if the position is customer-facing.

Make sure you research the company you are going to work for, and the interviewer will likely ask a question highlighting whether or not you know anything about the company. You'll want to see if they have been awarded significant contracts and other key points about the organisation. Know who the CEO is; showing you have made an effort to research the company and learn these details will go a long way to impress your interviewers.

When asked questions, back up your answers with real examples showing how you dealt with the various situations. For example, if you are asked if you cope well when things do not go to plan, have an example ready. Likewise, if they ask you if you consider yourself a person who pays attention to detail, have an example ready to show that you are.

Usually, at the end of an interview, an interviewer will ask if you have any questions. Make sure that you do. This shows that you have a genuine interest in the company and want to know more about it. Most people will not ask questions, so if you do, you will immediately set yourself apart from the crowd.

Try to relax and show the interviewer your authentic self. An experienced interviewer will be used to people putting on an act or trying too hard. Don't be that person. Show that you are confident and comfortable, even if you don't feel it!

Find your own routine and commit to studying time, whether its half an hour in the morning or the evening. You'll get to know your own routine and you'll see results soon!