Let’s take a walk in the park and meet the owner/curator behind the Openhouse’s Park Here, where the grass is fake but the warmth and people’s response is real. The trees are plastic foliage stapled to wooden trunks. The sunlight emanates from light boxes designed to treat seasonal affective disorder. The birds chirp through a sound system. The park occupies the Openhouse Gallery through the end of the month and is open to the public every day from 11 a.m. to 6 p.m. This was filmed in January. Park Here II began last week.