■ The International Spy Museum will hold its annual Spy Fest, a kid-friendly event encouraging children ages 5 and older to analyze documents, speak in code, pick locks and learn tips from a former CIA intelligence officer. 6 to 9 p.m. $12 to $14. International Spy Museum, 800 F St. NW. 202-393-7798.
Classes and lectures
■ Ami Wilber and Drew Asbury from the Hillwood Estate Museum & Gardens will demonstrate using fresh-cut flowers and foliage to create popular garden-style floral designs. Noon. Free; registration required. U.S. Botanic Garden Conservatory, 100 Maryland Ave. SW. 202-225-8333.
■ The Capitol Hill Arts Workshop will host a drop-in “Working from the Figure” session. Participants will work on drawings or paintings in front of a live model in a session without formal instruction. 6:30 to 9:30 p.m. $15. CHAW, 545 7th St. SE. 202-547-6839.
■ The Calvary Baptist Church Concert Series will feature Simon Finlow and Faith Zúñiga on the piano with Anna Kong on the violin and Zachary Whitaker on the cello. Noon to 1 p.m. Free. Calvary Baptist Church, 755 Eighth St. NW. 202-347-8355.
■ National Symphony Orchestra members Jamie Roberts, Mahoko Eguchi and Jamila Tekalli will play music on the oboe, viola and piano. 6 p.m. Free. Millennium Stage, Kennedy Center. 202-467-4600.
■ Violinist Maxim Venerov along with his mentor Mstislav Rostropovich on the piano will perform music by Brahms, Ravel, Ernst and Paganini. 8 p.m. $35 to $95. The Music Center at Strathmore, 5301 Tuckerman Lane, Bethesda. 301-581-5200.
Discussions and lectures
■ The Folger Shakespeare Library will host Brews and Banter: The Way of the World. Enjoy craft brews at this casual behind-the-scenes conversation with The Way of the World cast members. 6:30 p.m. Patrons 30 and under can purchase discount tickets, starting at $25, to the performance following the conversation. Folger Library, 201 East Capitol St. SE. 202-544-4600.
■ The Japan Information and Culture Center will screen the science fiction drama “Girl Who Leapt Through Time,” about high school student Makoto Konno who finds that she can time travel to avoid her problems. 6:30 p.m. Free; registration required. 1150 18th St. NW, Suite 100. 202-238-6900.
■ Busboys and Poets will hold an Open Mic night for people who speak or are learning to speak American Sign Language, allowing members of the public to recite poetry, songs, a short skit or jokes in sign language. 11 p.m. to 1 a.m. $5. Busboys and Poets, 5th and K streets NW. 202-789-2227.