May I cut in?

Interviews are like a dance. You and your partner (the interviewer) either mesh fluently and glide across the floor, or you both ride each other's toes all night long. The best dancers understand that there's lots of give and take during the performance to make it look fluid and beautiful.

That's also the key to interviewing; you have to know when to talk and when to listen. Interviews work best when they are an exchange of ideas rather than an information dump. There's no interplay if the interviewer simply tells you about the job and then you tell him your experience in return.

For instance, every interviewer will take a moment to both explain the parameters of the position as well as a history of the company. This is the moment where you gently cut in and put all of that homework you did on the company to good use. This can be in the form of a question, "I saw that your company did XYZ, did they consider ZYX?" or it can be a simple statement, "I also read that widget production had a huge impact on foreign profits."

These are liable to begin a conversation that not only highlights your knowledge of the company, but of the industry as a whole, and the dance (information exchange) can begin.