The first interview is all about you! Many simple questions, they mostly want to know your background and what your interests are. Very low pressure, and there is a presentation at the end overviewing the details of the internship.

Interviewed in person with the same recruiter as I did on the phone. She was an alum of the university I attend so we talked about things related to the university for a few minutes. Basic questions, describe yourself, where you see yourself in 5-10 years, define success and what makes a person successful. Answered some of my questions I had, gave me a tour of the area where the current interns work (none were there, as I assume they all were in class), talked to a few full time reps for a couple of minutes. Pretty easy stuff.