The much-anticipated long holiday weekend is nearly here, and while many of us are busy planning our backyard barbecues or seeking rooftops for fireworks viewing, select Bushwick galleries will also be holding opening receptions Saturday and Sunday to add to the July 4th festivities. Check out this week’s Art Picks below for reception dates and times, and also don’t miss our list of shows closing soon- see ’em while you still can! And, of course, Happy Birthday, ‘Merica!