How Demi Moore Beats Being 47

How Demi Moore Beats Being 47
Demi Moore
Charley Gallay/Getty

04/12/2010 AT 11:30 AM EDT

Demi Moore might be 47, but she really doesn't feel a day older than ... well, 5.

"I pretty much think of myself as like still being about 5. Maybe that's why my Twitter picture is of me at 5," the actress said Friday at a press conference for her new movie, The Joneses.

That childlike enthusiasm, not any particular beauty products or workout routines, is what she says makes her seem so young. "I don't know if there is any particular secret [to staying youthful]," she says. "I think that laughter and smiling are one of the best antidotes to aging that you could possibly have."

Moore's affinity for the younger generation will come in handy this summer when she shoots her next film, LOL, in which she plays Miley Cyrus's mom. Moore just met the 17-year-old pop star last week, and was impressed.

"I think she's extremely talented," she says. "This role is going to be really good for her. I think she'll do an amazing job. She clearly comes from a really solid family, which I think really shows."

For now, Moore – who's been mulling the idea of becoming a mother again with Ashton Kutcher – is promoting The Joneses with costar David Duchovny.

It's a film about today's rampant consumerism as seen through a family that has everything (including more than a few secrets). And for Moore, it was a chance to re-examine her own values when it comes to material things – and the lessons she tried to impart to daughters Rumer, Scout and Tallulah.

"I feel like I have the fortune of privilege, particularly as it relates, say, to my children," she says. "I've always really tried to keep a positive perspective of what's valuable … that who you are isn't the stuff you have."

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