Think of meaningful questions to express that you're curious and have thought about the company.
Detail the goals of your career and the reasons you like the opportunity.
Think about your responses.
Do not be fearful to declare you don't know an answer.
Suggestions for those looking for employment:
"Before you have the interview find the info about the employer. Get to know what the firm does, who their competitors are, and their principles. An interviewer will not listen to what you say if you don't understand how they operate."