Baptized in '65
Nothing to sign until standing in line coming out of the dressing room on the way to the pool. Brother stationed there asked if we were ever baptized before, wrote down our answer, then we signed what looked kind of like a sign up sheet.
Was asked the same question but didn't sign anything.
Incidentally I had never been to a KH before my baptism. The convention was my first experience with JW meetings. I have never met anyone with a similar experience.
Loris