Nothing, he had replied.
The 48-year-old spoke to FiRST yesterday afternoon in a phone interview from Hong Kong where he was promoting his new sci-fi action movie Future X-Cops.
One can't help but relate his answer to his secret marriage exposed in August last year.
Lau had married Malaysian Carol Choo, with whom he has been linked for 24 years, in a secret wedding ceremony in Las Vegas in June 2008.
His credibility took a severe beating last year when his secret was exposed. Just months earlier, he had denied on television that he was married.
Afterwards, Lau apologised for lying to the public and admitted that he had behaved inappropriately for a public figure.
Despite his tainted reputation, Lau told us yesterdaythat he is very close to finding what he thinks is bliss.
Why aren't you there yet, we asked?
His enigmatic response: 'Who knows what blissfulness is?'
Contented
He then added that he was very contented.
'There is no perfection in the world, but I'm very close to where I think I can be with the person I love,' said Lau.
And that, folks, is the closest anyone got the man to talking about his wife.
But almost as if he realised that same thing, Lau tried to draw attention away from that topic.
He interjected almost too quickly, talking about the people who love him, like his supporters.
It isn't hard to figure out why bliss has been elusive for Lau.
His love life has been placed under a magnifying glass. He was tailed by the international press when he attended the funeral of Ms Choo's father in Malaysia last August.
The couple want to have a baby but are still childless.
He also told Apple Daily in Taiwan recently that they 'date' mostly at home. You can easily imagine the pandemonium if the two went shopping and dining in, say, Mongkok.
Lau however told us that the media has been kind to him.
The actor was on a promotional tour to China, Taipei and Hong Kong to plug Future X-Cops in recent weeks.
As expected, reports have focused not so much on the Wong Jing-directed flick but on his marriage.
The media outings are the first time Lau has faced reporters officially after his marriage was exposed.
Tight-lipped
But the singer-actor remained tight-lipped about his love life. He didn't fall prey to our attempts to talk about relationships.
How did you manage to juggle a long romance with your career, when it's especially difficult for a celebrity to keep a relationship?
Lau paused dramatically and said: 'I don't know. It's not convenient for me to say.'
That same answer was uttered when reporters in China and Taiwan probed into his love life.
Though he was always jovial, the actor reportedly lost his cool in Taipei when reporters asked him about getting assisted reproductive technology to conceive a child.
He reportedly looked displeased and told the media to stop asking.
These prying questions don't usually bother him, he told us.
'The media have their work demands. I don't mind them asking but I have my own attitude towards this too,' he said.
'If I'm comfortable with someone, I may reveal some information. Most times, I'll share personal details only with my family.'
But he opened up about his life with MsChoo with Apple Daily in Taiwan recently.
The actor reportedly confessed that he didn't get down on bended knee during his marriage proposal, and that he cooks breakfast for his wife.
He added that they have quarrels but he would apologise first.
Lau appears to be working hard for his money.
Just this year alone, he will release three movies, all of which are action flicks.
Apart from Future X-Cops, there are also the martial arts mystery film Detective Dee, and Jackie Chan's movie Shaolin, which Lau is filming in Hong Kong now.
He told us it wasn't difficult at all wearing a chunky RoboCop-ish costume and getting wired up for scenes in Future X-Cops.
In it, he plays a policeman from the year 2080 who travels 60 years back in time to protect a young boy from cyborg assassins, who are trying to kill the boy to prevent him from growing up to become an influential scientist .
The movie, which also stars Barbie Hsu, Mike He, Charles Chen (aka Blackie) and young actress Xu Jiao of CJ7 fame, opens today.
If Lau could travel back in time, the actor told us, he would return to the time when he was five years old - two years before his paternal grandfather died.
'If I can go back, I want to spend more time with him,' he said.
In the movie, Lau had to film in front of a green screen, which was later enhanced with computer-generated imagery (CGI).
'It was very fun because there are lots of action scenes and I get to fly. In the past, we had to act alone in front of a green screen. But now, we act opposite a partner dressed in green,' he said.
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