There's a particular spark of spontaneity on Grand Avenue, where First Friday offerings have a way of inspiring creative detours. The street is dotted with art spaces ranging from galleries to courtyards, and browsing them you'll find an intriguing mix of works by emerging and established artists, as well as impromptu art experiences. One First Friday, you may discover a massive temporary art installation using recycled and found objects. Return next month, and you could stumble onto artists doing aerosol paintings on wooden panels lined up along a sidewalk. There's a palpable sense of community here, too — people linger to talk, making connections that last far beyond First Friday.