It's all too easy to get guilted into going green, with freegan friends and Al Gore cheerleaders pushing us into dangerously crunchy territory. But Fort Greene's Habana Outpost is one place where no one feels eco-terrorized; folks are too busy enjoying frozen mojitos. In honor of Earth Day, the city's first solar-powered "eco-restaurant" hosts an expo to educate and entertain. Scope composting workshops, recycle old electronics, score green products from local designers, and learn how to get involved with activist groups or just reduce your footprint — all pressure-free. Smoothies from a pedal-powered machine and fresh-grilled corn keep the good vibes flowing.