Good because: This gives you an indication of how they do their job. Someone who spends all day at the PC may suit your environment, or you might be looking for a project manager who gets out and visits clients most days of the week. Remember that they might be prepared to do something other than what they do now, so if you hear something that doesn't fit with the post you are recruiting for, don't rule them out before exploring this further.

Bad response: "Facebook."