Engage with the art in an un-intended way: Another thing we do (when we go to the Olympic Sculpture Park) is play elaborate games of Hide and Seek Tag using this Richard Serra sculpture:
My son says he doesn't like looking at sculpture, but he sures loves to run around these wonderful columns, staying just out of my view, then coming out from out of nowhere and racing me down. It's inspiring to watch children who say they don't enjoy art engaging completely with it kinesthetically. Small victory ... and he doesn't even know he's getting an art lesson. I imagine Serra smiling and nodding down upon us as we fully "get" his structures.
Express yourself without words: Another thing we enjoy doing is collages. Seattle Art Museum has an artist studio for kids to draw self-portraits, make art, etc.
Visit art museums as often as possible. In the past couple of years I have been lucky to visit art museums in DC, Denver, Philadelphia, Santa Fe, Portland, OR, and Chicago. This is how I stay connected to my creative self while the crazy chaos of living rages unabated all around me.