The first question every interviewer asks a prospect Candidate is to tell about himself/herself, This is your first chance for making an impression. You have to start by saying "I am". Most people say "Myself" which is wrong. You have to start giving your name and where you are from. Your educational qualifications, hobbies and family. Do not say "Reading Books" is your hobby if you meant "Filmfare". You need to be as honest as possible in an interview so as not to ruin any chances of positive outcome. The next thing is that you have to remember the technical words  and their meanings for the interview. Do not use technical jargons unless the Interviewer starts to do so. Because you do not want to be tested deep. Be clear in your answers. Be honest if you do not know the answer, Do not beat around the bushes. Make sure you reach the venue atleast half an hour before the scheduled time. And read the News Paper for the day so as to keep yourself updated as what is happening around you so as not to be caught off guard if asked about something relevant for today's time. Make sure you wear light coloured but iron clothes so as to make a presentable impression. And the most important thing of all is to be confident and answer in clear voice.