The interview is your chance to create a strong first impression and to tell an employer about yourself and the skills you can bring to a job. Try to anticipate the interviewer's questions and practice your responses before going to the interview. An employer's first impression will be based on how you present yourself both verbally and physically. Show up on time. You only have one chance to make a good first impression.
Punctuality is extremely important.
Try to be at your interview a few minutes early. Provide a firm handshake and look people in the eye. A firm handshake conveys confidence. Ask questions about the job. Asking questions shows an employer you are interested and allows you to have a better understanding of the job.