To me, suspense draws attention of the audience and "gets them" into the movie, creating tension and viewer's interest. I also think it keeps us guessing, what's might and what will happen next. Audience should automatically create question in their mind. Suspense can be created using technical areas such as camera work, editing, sound and Mise en Scene. I also believe that the plot of the movie matters too. Cliffhangers can be used to create climax.