Do you mean as a hiring manager? If so, I attempt to paint the most realistic picture of our company’s culture as well as the department’s. Final candidates need to know what will be expected of them so that they can make the decision if the job will be the right fit.
I also ask a lot of “Describe a time when you were in this scenario, and how did you handle it?” questions during the interviews. Another part of the interview process is to have the final candidates meet with and talk to other people within the dept. that have similar jobs. It allows them to ask questions about what it’s like to work for the company, that supervisor, etc.
The way I look at it, candidates need to be interviewing us as much as we are interviewing them. I would rather have someone turn down the job based upon what they learned about us then to hire them and have them be miserable down the road.