Programme-makers at Big Brother have pulled out all the stops to keep viewers tuned in to the show this week.In the latest twists in what's been dubbed Fake Week, Charley Uchea and Nicky Maxwell will face a bogus eviction, while false housemate "Pauline" has been booted out of the house.Friday's eviction will see the housemate with the most votes go straight back in after being interviewed by Davina McCall.Meanwhile, fake housemate Thaila Zucchi, 26, who was pretending to be Australian waitress Pauline, had to leave the house after housemates lined her up to be the most false inhabitant.In a task, the show's contestants had two minutes to position themselves on 12 podiums - ranging from least fake to most fake member.Brian Belo, who had earlier been told the truth about Thalia by Big Brother but ordered not to tell anyone, appeared agonised at wanting to pass the task but not blow his secret.In a masterstroke he said: "I think we should put Pauline at the end, because we don't know her as well, yeah? "To be fair. Nothing against you Pauline."Big Brother then instructed housemates to gather on the sofas as Thalia was called to the Diary Room. An anouncement followed and "Pauline" was outed as an actress from Swindon.By identifying her as the most fake, housemates had passed their Shopping Task. "Yes!" shouted Liam triumphantly, "I snogged an actress!""Well done housemates," said Thalia, appearing on the plasma screen. "You worked out that I was the fakest housemate in the House. It was so nice to meet you all and I've had an amazing time."Meanwhile, ex-housemate Laura is looking forward to meeting up with everyone when the winner of the show is finally crowned. She has been put on a strict diet by fellow evictee Shauny and aims to look dazzling for the evening.© Independent Television News Limited 2007. All rights reserved.