I found the job posting in a newspaper. I was looking for a part time job that would be good exercise, so I called. They called me in for a "Sort Observation" where you would go in and see what the job was like. Then they sat us down in a conference room and asked if we still wanted the job. I was told "It's hard work for not a lot of money." When you show up, be presentable. Wear a collared shirt and slacks. Many people that were in my group interview showed up looking like they just rolled out of bed. They were not asked to join the company.