On Friday, check out improv comedy troupe The Focus Group at the Bangor Arts Exchange, the Orono Arts Fest at various locations throughout Orono, or the last weekend of “Little Shop of Horrors” at Penobscot Theatre. On Saturday, Dirty Heads and Slightly Stoopid play at the Maine Savings Amphitheater. Feeling outdoorsy? On Friday evening there’s an evening guided paddle for loon lovers at 6 p.m. at Fields Pond Audubon Center in Holden. On Saturday morning, Bangor Land Trust hosts a naturalist-guided walk through the Northeast Penjajawoc Reserve, leaving from the Kittredge Road parking lot at 10 a.m. And on Sunday morning, the Spiral Goddess Collective hosts a pay-what-you-will hiking yoga session, beginning at its facility at 16 State St. at 9:15 a.m. and continuing throughout downtown Bangor.