Agree with Manicsleep. Looking at notes in an interview (any kind of interview, not just residency) just isn't seen as professional.
I sympathize, because my memory isn't the greatest. What I have been doing is writing out some talk points or questions on an index card, which I carry around in my breast pocket. That way, I can give it a quick glance to refresh my memory before walking through the door of any interview session.
That said, I haven't actually felt the need to do so. But knowing I have the card probably gives some reassurance.