What the hiring manager wants to hear is a focused answer that includes 4-5 things about you relevant to the job opening. The best answers are 2-3 minutes long and include information about your education, interest in the field, experience and work history; make sure all of these details are related to the role in some form. Be sure to match your strengths to the job role and outline any instances where you used these strengths to assist a previous employer; try to quantify the answer with data and numbers if possible.