Federico Postorino outlines his strategy for new business development which includes targeting audiences, qualifying new customers, understanding the target market, and conducting client sales visits. He discusses his strengths such as relationship building and negotiation skills, as well as areas for improvement. Postorino emphasizes the importance of networking, attending events, and using digital tools like websites and social media to reach customers and gain new business. His goal is to gain new accounts and increase company profits by transforming interest into sales.