Two weeks after giving birth, Russell takes her newborn out for a New York stroll. Plus Hayden & Masi, Courteney & David and more

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PEACE OUT

Courteney Cox and David Arquette get hands-on with the African anti-poverty campaign OmniPeace during the charity's launch party at L.A. boutique Kitson Men on Thursday. The actress, who hosted the event, told PEOPLE that her philanthropic efforts are (sort of) rubbing off on the couple's 3-year-old daughter Coco: "Look, at this point I'm just trying to get her to share her Barbies!"