Harry Potter and the Philosopher's STONED; EXCLUSIVE: Star of kids' films laughs as he has joint.

Byline: CLEMMIE MOODIE

GIGGLING Daniel Radcliffe gets off his face on dope - as a friend scrawls a comedy moustache on him.

The party-loving Harry Potter idol, a spliff between his fingers, could barely stop chuckling as the girl daubed his face at the house bash.

Fellow reveller Wadia Tazi, 26, said: "Daniel was laughing and seemed to find it funny. But he didn't really look like he knew what was going on."

The screen idol, 20, earlier lit up the joint in front of guests and repeatedly took deep drags. He also walked around the flat blurting out: "I love weed."

Wadia added: "I was surprised by his behaviour.

He is a kids' favourite. I'm not sure what his fans will make of it."

Yet just last year the pounds 30million actor insisted: "I've been around some amazing people and still managed to keep a real childlike view of the world. I'm not into drugs."

The get-together, at a high-rise in Camden, North London, was thrown by a friend of his onoff actress girlfriend Laura O'Toole.

Wadia and one of his pals arrived at around 1am to find just eight guests as festivities wound down. He said Daniel already seemed in high spirits but keen that the newcomers did not twig who he was.

Wadia said: "Most of the beer had already gone and people were tucking into pizzas.

PUFFING

"Daniel looked spaced out and away with the fairies. He didn't want us to recognise him. When I said he looked like that actor in Lord of the Rings [Elijah Wood], he got a bit funny and said, 'No, that's not me'. He looked pretty uncomfortable.

"I didn't recognise him as he looked so different to what I expected from the films. When my friend told me who he was, I was shocked."

Within minutes of arriving at the do, Wadia, his pal and the star were alone in the kitchen - and Daniel began puffing on a joint.

Wadia said: "He was really friendly and talking about his dad a bit. Then he pulled out a huge joint and lit up. Daniel said he loved it. He seemed happy that neither of us knew who he was.

"At one point a girl dragged him away, saying, 'Come on Daniel, follow me. You don't trust me, do you?' She pulled him into the toilet and started drawing a huge comedy beard on his face."

The mood almost turned sour when a man called Sam - believed to be the star's minder - and Laura confronted Wadia over footage they believed he had shot on his phone. They found none.

Wadia said: "Laura was very protective. She said Daniel had a reputation to protect and couldn't ruin it. I presume she meant by being seen smoking. I said I didn't know what she was talking about.

"But almost immediately afterwards she and Daniel left."

Last year Daniel - now filming Harry Potter and the Deathly Hallows: Part I - revealed that this year's Harry Potter and the Half-Blood Prince contained subtle drug references.

He said: "There are a few drug metaphors in the film. I think any film marketed in the main for children still has humour that works on one level for them and on another level for adults."

CAPTION(S):

SCREEN HERO Dan as his fans know him DRAWING ON A JOINT He smokes and exhales from spliff as friend daubs his face DRAG ACT Star Daniel smokes pot at the bash