First, stay focused on yourself, and before the interview, just try to get some info's about the company you will work for or by trying to get some details on some tasks and works you are about to do when you get hired. Some people interviews loves it when they see on the person they are interviewing is knowledgeable and smart enough for the job.And show some confidence while you were speaking to them (even though you have little confidence, strive to pretend you do)P
leasing appearance and the way you dress sometimes help or the way you talk to them, show them some respect and formality by greeting them and shaking their hands so that they will know that you are formal. Pick out an outfit that is sutible for an interview and yuou love! As far as look in the mirror you don't have to just clean up as always, an d try to put your self together nicely
last but not the least, don't show them that you are nervous and freaking out because when you are nervous, you cant really focus for your answer and your mind will go blank. Also,dont forget to thank them and show them that you are willing to work for the company..
tell them all your positive side and never mentioned your weakness!!!!!!!!!!!!