Remember back in school there would always be that one kid who was able to get the teacher talking and going off topic so the class had to do less work?

Basically learn to do that in your interviews. If you're lucky enough to know the name of your interviewer beforehand, stalk their LinkedIn and try and find something they're interested in. People love talking about themselves. If you can manage to get your interviewer rambling about something they like, they will come away feeling it was a good interview, and you'll probably learn a hell of a lot more about what the job is actually like on a day to day basis.

I've found that the smaller the company, the higher the success rate doing something like this. Larger companies tend to have a more rigid interview structure or have multiple interviewers at once.