A talk has just been given and now the press is allowed to ask some questions. This is the moment the game starts.
The person that just gave the talk did something. That is what the talk was about. They just don’t know what it was (this is asked from the audience). They answer questions from the press and that way they try to figure out what they did. The press gives hints with their questions.
And, this is how “De Lama’s” explain it themselves… The press conference (all players):
One of the Lama’s has given a press conference because they did something (e.g.: they had sex with the whole football team). The Lama that gives the press conference is the only one that does not know what this is. With the questions that the other Lama’s ask during the press conference they have to guess what happened.