I have read that some people try and bluff their way through with some of the answers but not everybody is comfortable with that approach. IMO its better to have the info to hand so that you can answer comfortably without having to sweat your way through the process. If after that you are really stuck then maybe thats where the bluffing might come in handy....At the time I knew my wife wouldn't be comfortable at bluffing so I made sure she was as well prepared as possible beforehand.
