Be confident and sincere while you answer, else they may find you non-caring about your weaknesses. webpagePhysical space can also be used as a communicative gesture. Other gestures that you could interpret are raised lips and corners, which indicate happiness. Also make sure that the attire is well fitted and comfortable. How one speaks probably makes the greatest impact when it comes to an interview. The posture of the person tells a huge deal about them. There are several reasons for which this question has been asked. However, job interviews allow the employer to decide with which candidate he or she is most comfortable.