In the Crew Quarter's investigation, there will be a phone that you can use to dial the other rooms in the Crew Quarter's, but dialing some of these numbers will also give you some quick hidden conversations. 5309 - Quick conversation with "Jenny". 6969 - Erotic hotline. 3141 - The Origin of Pi.8008 - Message that is upside down, like on a calculator.
Look at the billiard ball poster, and Alice will say "These look like they're from that show where these kids collect seven balls that can grant a wish".
Dial the following numbers on the phone in Room 04 of the crew quarters to hear various mesages.