Brilliant in his studies and dismissive of athletics, Ronald finishes high school at the top of his class. But in college his uptight attitude doesn't win him any points with his sports-loving classmates, and pretty coed Mary ignores him in favor of brutish jock Jeff. Hoping to impress Mary, Ronald makes a buffoon of himself at every sport imaginable, usually at Jeff's hand. But Ronald gets a final shot at glory in a big rowing race, 7:30 p.m., Chautauqua Auditorium, 900 Baseline Road, Boulder; $6-$12; 303-440-7666.COMMUNITY
Natural Grocers 62nd Anniversary Celebration and Block Party Join Natural Grocers to celebrate 62 years in business. Outside will be a community block party with vendors, food trucks, BBQ, a fire truck, massage and more! Inside enjoy great deals, vendor samples & hourly door prizes. 1950s style ice cream social from 4-6 pm. Company-wide prizes include an Alaskan cruise, and more, 8 a.m., Natural Grocers, 100 West South Boulder Road, Lafayette; free; 303-926-1600 or naturalgrocers.com.
Boulder Burlesque with the Boulder International Fringe FestivalAnnouncing: A new world order. Madame President and her esteemed cabinet will address a variety of issues through the sacred medium of burlesque. Join the embodied performers of Boulder Burlesque as they explore a vision for a future that includes all and marginalizes no one, 6:30 p.m., Wesley Foundation Chapel, 1290 Folsom St., Boulder; free; boulderfringe.com/upcoming-events.TALKS & WORKSHOPS
Canning & Preserving Class Learn all you need to know to start canning at home with step-by-step instructions and demonstration. Learn how to can safely, and take home recipes and a jar of something delightful. The class will also cover pickling and basic fermentation. You will go home with the Ball Blue Book, the home preserving bible for recipes and safe canning techniques, 6 p.m., St. Aidan's Episcopal Church, 2425 Colorado Ave., Boulder; $40; 303-4439952 or growinggardens.org/gardening-and-cooking-classes.
Delicious & VeganWith summer produce at its peak of freshness, now's the perfect time to add delicious vegan dishes to your repertoire. In this fun, hands-on class, you'll work alongside classmates as you practice everything from smoking and roasting veggies to making vegan Caesar dressing and a creamy cauliflower risotto. Plus, our instructor will walk you through the steps for making a delectable raw and vegan "cheesecake" featuring fresh summer berries, 6:30 p.m., Sur la Table, 1850 29th St., Suite 1004, Boulder; surlatable.com/browse/storeLocator/storeDirections.jsp?storeId=106.
Active Minds presents: Spain From its heights as the dominant country in the world in the 16th century, Spain is now one of the European countries struggling with debt. Join Active Minds as we explore the roots and legacy of the Spanish Empire and how this important country fits into the regional and global puzzle today. RSVP required, 2 p.m., Brookdale Boulder Creek, 3375 34th St., Boulder; free; 303-473-0333 or activeminds.com/events_boulder.html.THEATER
Footloose, the Musical This is a student production performed by youth, 18 and younger. To the rockin' rhythm of its Oscar and Tony nominated top 40 score and augmented with dynamic new songs for the stage musical, "Footloose" celebrates the wisdom of listening to young people, guiding them with a warm heart and an open mind, 6 p.m., Jesters Dinner Theatre, 224 Main St., Longmont; $15-$30; 303-682-9980 or jesterstheatre.com.
"It's Only a Paper Moon Hanging Over Immigration History" A work-in-progress, multimedia performance focusing on the creation of racial scripts in immigration history, how these scripts shaped American immigration history through both legal methods and extralegal violence, 7 p.m., Dairy Arts Center, 2590 Walnut St., Boulder; $15-$20; motustheater.org/event/its-only-a-paper-moon-hanging-over-immigration-history.