February 4

American Red Cross, Hawaii State Chapter, 4155 Diamond Head Road, 8:30 a.m.-1:45 p.m., $90. Get trained to recognize and care for victims of illness and sudden injuries and learn how to administer CPR and use an AED for life-threatening respiratory or cardiac emergencies on adults. Pre-registration required. (1-800-733-2767, redcross.org/take-a-class)

Cathedral of St. Andrew, Von Holt Room, 229 Queen Emma Square, noon-1 p.m., free. Learn more about current issues and opportunities in preserving historic churches and other religious buildings from Richard Tillotson. (historichawaii.org)

Station Bar, 1726 Kapiolani Blvd., 8-11 p.m., free, age 21 and up. Hawaii’s longest-running open mic comedy night. (mraaronpresents.net)

Castle Medical Center, 10:15 a.m.-1:45 p.m., free. Donate blood to save lives. Appointments recommended. (848-4770)

First Hawaiian Center, Pookela Meeting Room, 6:30 a.m.-1:15 p.m., free. Donate blood to save lives. Appointments recommended. (848-4770)

Honolulu Community College, 8 a.m.-1 p.m., free. Donate blood to save lives. Appointments recommended. (848-4770)

Kailua Town Center, 3-7 p.m., free. Donate blood to save lives. Appointments recommended. (848-4770)

Oahu Country Club, noon-1:30 p.m., $25. Hawaii Electric Co. president/CEO Alan Oshima discusses the future of clean energy in Hawaii at Exchange Club of Downtown Honolulu’s luncheon meeting. (225-2965, edracers@aol.com)

Royal Hawaiian Hotel, Coconut Grove, 10 a.m., free. (922-5331)

Check website for schedule and costs of events. The annual celebration of art, music and culture returns to Hawaii with concerts, block parties, art exhibits, street mural painting, classes and much more. (powwowhawaii.com)

Ala Moana Center, Feb. 4 and 5, 6:30 p.m., free. Wah Ngai Lion Dance Association performs pole jumping routines. (alamoanacenter.com)

Meet at Kuliouou Beach Park, 9 a.m.-noon, free. Join Malama Maunalua and pull invasive alien algae at Paiko beach. RSVP required. (nwilliams@malamamaunalua.org)