Sometimes it seems that giving interview is the most tuff task and sometimes vice-versa is also true.its dual nature exists only because of confidence gap.those who have their heads high feel easy.basically, in an interview, there is a person in opposite side called as interviewer going to ask some tuff tickels from you.this may itch you, hurt you, frustrate you.but, one who hold the nerve is the winner.keep calm, be patient and have confidence.there is enough in you.if they can make penicillin from moulded bread.believe me there is plenty in you.god doesn’t create garbage.in an interview, you answer what you know but also confident of otherwise admits politely, confidently and diplomatically.confidence changes your body languague and inculcate a winner in you.