Cleanup needs volunteers: Keep Tampa Bay Beautiful is recruiting volunteers to assist in removing litter and debris from the community during the 25th annual Hillsborough River and Coastal Cleanup. The cleanup starts at 9 a.m. Saturday at various sites along the Hillsborough and Alafia rivers and other waterways. A Rollin' on the River Rally follows the cleanup at Lowry Park. For site information and to register, visit keeptampabay beautiful.org.
Gluten-free tasting: Find alternatives and how to keep your favorite flavors and foods in a gluten-free diet, 1 to 3 p.m. Saturday at Whole Foods, 1548 N Dale Mabry Highway. Free. Register in store or email firstname.lastname@example.org.
Introduction to Flickr: Learn how to upload and share photos with an online Flickr account, 2 p.m. Saturday at John F. Germany Public Library, 900 N Ashley Drive. For adults only. Limited to 12 participants. Free. Call (813) 273-3652.
Open house: The David A. Straz Jr. Center for the Performing Arts hosts an open house including live entertainment, tours, samples and a sidewalk sale, 10 a.m. to 3 p.m. Sunday at 1010 N Macinnes Place. Free. Visit strazcenter.org.
Understanding food allergies: Mary Keith of the Hillsborough County Extension Service will discuss various types of food sensitivities and allergies, and also how to live, cook and shop with food allergies. 6 p.m. Wednesday at North Tampa Branch Library, 8916 N Boulevard. For adults and families. Free. Call (813) 273-3652.
Honors symposia: Kacy Tillman, assistant professor of English, will talk on "Turncoats, Traitors and Tories of the American Revolution," 5 p.m. Wednesday at the University of South Florida, Library AV2, 4202 E Fowler Ave. Free. Call (813) 257-3545.