The Henry is outside our usual moms-and-tots circuit, but I'd heard good things about Pae White's "Command-Shift-4." (Like walking into a drawing!) I expected to feel out of place among the young and very pierced, but what I didn't expect was how kind people were. Some students helped lug my stroller up those brick steps, another held the doors open for me, and a guard thrilled Joseph with a little "Henry" button. Thanks, guys! Spectacular installation, too. Closes Jan. 24.