When I first got in I signed some new hiring papers with my basic info and a few signatures. Next, I waited until my interview time (I got there 30 minutes early to avoid long waits in line because there were a lot of people) and as a group we were led back into this room. 2 workers introduced themselves and asked us as a group a few questions. While one was asking questions the other was observing us. After the questions/observation they left for a few moments and then came back to take those who didn't get the job. The rest of us were congratulated and then went into another room to take a math test. After the test they handed us a packet that we needed to fill out and return within a week.

Depending on how desperate they'll be, they'll just immediately hire you on the spot through email when you apply. No phone screening or anything. Took me about a week to hear back. I applied in the spring.