Warehouse hiring event in Cincinnati this week - any advice?

A distribution centre near Cincinnati is holding hiring sessions this week for packers, pickers and forklift operators. I am in Cincinnati, in case local advice matters. They said to bring ID and a work history, and some people were hired on the spot. Do they hire temps first?

Thanks for writing this out. I went through something close to it 11 months ago, and it got easier once I kept a simple log of every call and form.