Potential employers are immediately dismissing anyone who arrives into their interview and looks anything other than interested and eager for the opportunity. Arguably the worst way of destroying a good first impression is by taking a seat opposite the interviewer and either slouching back in the chair, or leaning on either side. Not only does indicate a level of disinterest/boredom, it’s entirely disrespectful to someone who has given up their time to potentially present you with an employment opportunity. Correct your posture by sitting up, keeping your back and shoulders straight and facing the interviewer at all times.