"Employers are looking for security officers who are dedicated to protecting people through their attentiveness to detail and ability to detect danger. Expect interviewers to inquire about your physical fitness and ability to handle a tense or potentially harmful situation. Security officers may work closely with customers, so be sure to emphasize that you possess great interpersonal skills."
Why do you want to work for security?
If u have experience or want to work in that field mention that.