We usually have many off service residents who cover the intern area during conference. Staff covers everywhere else. As interns, we work 12's, while the 2's/3's work 8's. Those that worked the night before aren't required to show up to conference, especially if they have to return that night. Those of us working 12's have what we call "princess shifts," which mean you are scheduled during conference and just show up once it's over and work the rest of your shift, which is only 6 hours. We work 20-22 12's, btw, so I'm looking forward to switching to 8's next year.