Liv Tyler pushing her son in a stroller outside their West Village townhouse ... Chuck Schumer and Al Sharpton walking through Midtown ... Kelly Ripa and Mark Consuelos filming a cooking segment with their son for Live with Regis & Kelly ... Lauren Hutton wearing shorts and sneakers on a walk downtown ... Rumer Willis posing in a party dress outside the David Letterman show ... Madonna's kids, Lourdes, Rocco, and David, playing in Central Park with the nanny ... and Brody Jenner leaving a dinner at Cipriani Downtown.