Present an appropriate appearance. Use good communication and human relations skills. Show style and a positive attitude. Thorough preparation before the interview is critical, proper etiquette, poise and style are important. Everybody is equally qualified.
Employers have needs.
They know their needs. They seek matches between those needs and the applicant's interests and abilities. As soon as they have a match, they hire. Successful job seekers are those who learn to look at the job process and prepare their candidacy, from the employer's viewpoint, as well as their own. As you prepare for job interviews, engage in practice interviewing and all the other positive steps.