On the day

Dress appropriately; don't wear casual clothes even if you know the company has a dress-down policy. First impressions are very important.

Always bring extra copies of your CV or résumé - even if you're sure the interviewer has one.

Know where your interview is and arrive ten minutes early.

When you meet or are introduced to anyone you should shake hands firmly, look him or her in the eye, and don’t forget to smile.

Slouching or sitting with your arms folded will give a negative impression and suggest that you are uninterested in the conversation. It is far better to appear enthusiastic and listen attentively throughout the interview, leaning forward and maintaining eye contact. Don't fidget.

Answers should be kept succinct to avoid any waffle. Conversely, don't just say "Yes" or "No" - try to qualify your answers with examples that best show off your strengths, skills and achievements.

Don't feel you have to give an immediate answer to a complicated hypothetical question. It is perfectly acceptable to pause and gather your thoughts before answering.

At the end of the interview, make sure you thank the interviewer and ask what the next steps are.

Should you be unsuccessful after an interview, ask for verbal feedback, so that you are able to learn from each interview.