Slaven Bilic is hoping his Croatia side show their true colours at Wembley on Wednesday.
The 2010 World Cup qualification clash could see England book their ticket to South Africa, but Bilic plans on crashing the Three Lions' party.
He admits his team have sometimes struggled to live up to expectations on home soil, but expects a better showing from his troops in midweek.
Bilic said: "For some inexplicable reason, we often lose concentration at home. We quickly become nervous and it is easy to detect.
"If, after 20 minutes, we do not take the lead, or if the opponents have two consecutive corner-kicks, we are nervous.
"The best teams - those in the world's top 10 - do not fall apart and give up on what they've worked on in training.
"We need to show calm resolve, better communication and a solid block in the middle of the field.
"We will aim not to deviate from our game plan - we will defend as a group of 10 players and attack with a block of players."
One of those charged with providing attacking intent will be Tottenham new boy Niko Kranjcar.
The talented playmaker was on target for Croatia the last time they turned out at Wembley, during a 3-2 victory which put paid to England's Euro 2008 dreams in November 2007, but the 25-year-old expects a tougher test this time around.
"We are not expecting a repeat of what happened last time we came to Wembley," he said in The People.
"We were a young team and wanted to prove to everyone we could compete with the best in the world.
"It was a magnificent night for us but it will be a lot harder this time because England are a much better team than they were then.
"They were without John Terry, Rio Ferdinand and Wayne Rooney, and there was a lot of pressure on them and none on us because we knew we had qualified.
"Now we're aware we are probably playing for second place in the group behind England. If you offered us a point now, we would accept it."