Visit the first Fall Fest, a charity celebration of community service in New Haven. The event will open on Cross Campus with a reception of YHHAP and local nonprofit booths, featuring BBQ plates. Ticketed performance featuring Yale undergrad groups will follow. Proceeds will go to a New Haven shelter. Tickets: free for booth reception; $8 for performance; $6 for BBQ pre-order. Cross Campus, 110 Wall St., and Sudler Hall, 98 Wall St. Noon-4 p.m.