There are many types of interview styles, and you should be aware of each before putting yourself out there. Before ending the conversation with the interview scheduler (whether by phone or email), try to gather information about the interview itself. You should ask with whom you will be interviewing and if you’ll be meeting with them separately or as a group. Also ask if you will be expected to take tests or prepare a presentation. Knowing what’s to come will allow you to mentally prepare.
Interviewing methods differ greatly depending on the industry to which you’re applying, the company and even the position within the company. The interviewers may focus on one style or engage you in a combination of several interview types. The best thing you can do to prepare is to understand each kind and its intention from the interviewer's perspective.