Expect to be in a room with a large group of people. You'll be filling out paper work. They'll eventually make smaller groups and call them out periodically. When I went last year, they brought my group into the court room where the lawyers introduced themselves, told us about the case, people involved, how long it could last, etc. They said about 3 months and people flipped

Judge actually had to hit the gavel and say order in the court

Then they brought all the people who said they couldn't serve into the judge's chambers one by one. They asked me why I couldn't serve and I told them I had school and work (I really did). When they finished interviewing everyone (it was like 2-4 minutes per person), bailiff called out some numbers and said you could go home. I was outta there by noon.