Citizenship interview experience
(0) arrive at USCIS building
(1) pass secuty check
(2) go to designated floor
(3) check in with the receptionist
(4) sit in the pew, waiting to be called
(5) Go to an IO's office or cubicle you can overhear other interviews
(6) If represented by a lawyer but layer is not present, sign the release form
(7) Take an oath to tell truth.
(8) IO ask some questions, verify your ID
(9) THE IO ask if any thing changes since you sent N-400