Have an Agenda
When approaching the college interview, it is important to be prepared with specific experiences, characteristics, or qualities about yourself that you want to express to the interviewer. I call this "having an agenda". A typical college interview will last about 30 minutes, perhaps less, so you have very little time to express yourself. An interview is a give and take - you need to make sure you uphold your end of the bargain, er, conversation. So go in knowing what you want to express to the interviewer. If you speak 3 languages and want that to be known, somehow work that into the conversation. If you are an expert illustrator, or you have written an iPhone application find a way to work that in. Be conversational - interviewers loathe those awkward silences and love students who give full answers to questions. Avoid simple yes/no answers by elaborating on your responses. And if you do come across an awkward silence, take initiative by using it as an opportunity to ask a question. More than likely, the interviewer will conclude by saying, "Do you have any questions?". Try to have an 'extra' question prepared, so that you can ask it at the end. Finally, be sure to get a business card and follow up with a hand-written thank you note.