Approach an informational interview prepared. You want to learn about the companies’ culture to see if you fit. You want to understand the company’s goals and needs but be prepared with questions that will help you with these goals.
Learn who the right person to talk to is first and then learn as much as you can about that person and the role that person has in the organizations. Do some research on the industry and company as well as the person you want to talk to.
Look professional. Leave a business card. If you’re not employed have a professional business card with your name and contact information made up at the local printer. They are not expensive
Make an appointment. Keep your meeting short. Follow up expressing your gratitude with a thank you note.