Demi Moore giggled like a giddy schoolgirl when a fan pushed a rugby ball in front of her to sign at Nello’s restaurant in New York yesterday. "What’s that, a football? it’s a funny shape," the star of GI Jane and Striptease smirked. To continue the weirdness, the restaurant owner later produced an $11,000 truffle for photogs – like the one Demi had just nibbled on.