1st step is a phone interview with the Office Manager to verify certain requirements for the position as well as verify the candidate is interested and has a good personality.
2nd step is a group interview with current employees and managers to gauge the candidate's interest as well as skill sets to see if they would be a good fit for the company.
No crazy/out of the ordinary styled questions to throw off the candidate from wanting the position. Mostly read through past work experiences and what kind of work the candidate would like to do.