I applied through my university career service and got an interview. By the time the career fair happened all interviews were filled. I went to their information session and basically knew everything about the company. The interview was behavioural questions, asked me about myself and my skills. Easy to answer questions, I even got to ask them some great questions. They were very impressed with me and seemed to really like me. Two weeks later I received an email that I got declined. If they didn't contact you soon after the interview you probably didn't get the internship