The interview is the first time a future employer will really be able to see this part of you. An interview can be very overwhelming and sometimes feel like a firing squad of questions, which the interviewee needs to answer quickly. The best advice I can give to someone going into an interview is to be prepared. Go over some general questions in your head before an interview so that you feel comfortable with your answers beforehand. If you are confident in the interview, then the employer will be positive that he or she can trust you with anything he or she throws at you.
Don’t be scared to stand up for your accomplishments. I guarantee an employer would rather you stand by what you did, even if it is wrong. Other personality traits can be easily improved upon, but lack of confidence in yourself and your work is had to overcome!