When you set up an informational interview, you need to think about your objectives. For one thing, you want to gain insights and knowledge from the person that you're interviewing to help you learn about the career field. The questions that you choose to ask will help you learn the information that interests you most. You can also establish a professional connection and build a network, which will help you have a better chance of receiving a job offer in the future. You can follow up with this individual and learn about positions that become available.