April 25

American Red Cross, 4155 Diamond Head Rd., 8:30 a.m.-2 p.m., $110. Get trained to recognize and care for victims of illness and sudden injuries and life-threatening respiratory or cardiac emergencies in adults, children and infants, and learn how to use an AED. Advanced registration is required. (1-800-733-2767, redcross.org/take-a-class)

Verizon Wireless, Kapolei Commons, 2:45-4 p.m., free. Learn about the features of the iPhone. Advanced registration is required. (vzworkshops.verizonwireless.com/vzworkshops)

American Red Cross, 4155 Diamond Head Rd., 8:30 a.m-noon, $70. Learn emergency action steps and first aid procedures for injuries and sudden illnesses. Advanced registration is required. (1-800-733-2767, redcross.org/take-a-class)

Masaki School of Music, 5 p.m., $5. Sara Davis Buechner holds a master class. Advanced registration is required. (masakischoolofmusic@gmail.com)

Diamond Head Crater Park, 1 p.m., free, yellow shirts and hats are available for $5 each. Ever year on United Nations International Peace Da, stand up in the form of a peace sign. Wear a yellow shirt and head cover. (ericbutler777@gmail.com, 284-3577)

Town Center of Mililani, 6:30 p.m., free. (625-0108, towncenterofmililani.com)

Iolani School, April 25-26, noon-10:30 p.m., free admission. Iolani School holds its annual fair featuring family friendly games and booths, food stands, its popular Marketplace, live entertainment and more. (943-2252, cathylee@iolani.org)

Living Art Marine Center, March 14-April 28, 1 p.m., call for cost. Kids learn about the life aquatic through crafts, workshops and feeding the center’s animals (841-8080, www.livingartmarinecenter.com)

Contact for meeting location and time, free. Learn more about outstanding companies, projects and people as participating downtown Honolulu design firms open their doors to the public. Advanced registration required. (aiahonolulu.org)

Koolau Campout at Hoomaluhia Botanical Gardens, April 25-27, contact for time, free. Featuring music, workshops and socializing. Saloon Pilots also perform Saturday at 3:25 p.m. (bluegrasshawaii.com/binkapr14.html)

The Studio at Hawaiian Brians, 9 p.m.-2 a.m., $10/cover, 18 and older. Isouljahs, Cultural Movement and Mystikal Vibez live. Giveaways from Bless Up RASTA. (424-266-0045)

The Pub, 1718 Wilikina Dr., 9 p.m.-1 a.m., $5, ages 21 and older. N.BS performs alternative music. (621-1835)

Downbeat Lounge, 9 p.m., $5, 21 and older. Performing: The Saloon Pilots featuring Tyler Mongan and John Ridgeway playing bluegrass, Americana and blues. (visitor777@mac.com)

Downbeat Diner and Lounge, 9 p.m.-1 a.m., contact for cost. (533-2328)

Downbeat Lounge, 9 p.m., contact for cost. Oahu’s premier bluegrass and American music band. (533-2328)

Hawaii Convention Center, 6-10 p.m. April 25, 11 a.m.-5 p.m. April 26, $9. The Spring 2014 Hawaii World Class Wedding Expo features everything a bride needs to plan a wedding, and includes gowns from Casablanca Bridal and Formals, David’s Bridal and Masako Formals. Giveaways include trips for two to Las Vegas and more. (facebook.com/hawaiiworldclassweddingexpo)

The Gallery at Ward Centre, through May 29, 10 a.m.- 9 p.m. Mondays-Saturdays, 10 a.m.-6 p.m. Sundays, free. The Gallery at Ward Centre presents “Eyes Shut,” ceramic sculptures by gallery artist Jo Rowley and “Eyes Wide Open,” mixed media by gallery artist Cindy Conklin. (gwcfineart.com, 597-8034)

Castle High School, Ronald E. Bright Theatre, April 25-27 and May 2-4, 7:30 p.m. Fridays and Saturdays, 3 p.m. Sundays, $10. Castle DanceForce presents Footsteps, a dance concert inspired by respect for the perspectives of others. The Arts and Media SLC also presents projects as part of its collaborative unit. (showtix4u.com)

Ala Moana Shopping Center, Centerstage, 7 p.m., free. Students from the School of Hawaii State Ballet, under the direction of John Landovsky and Gina Surles perform. Dancers include students in intermediate through advanced levels showcasing classical and contemporary repertoire. (hawaiistateballet.com)

Hawaii Theatre Center, 7 p.m. April 25 and 2 p.m. April 26, $5-$10. Hawaii Theatre Young Actors Ensemble present “Much Ado About Nothing.” (hawaiitheatre.com, 528-0506)

Soul De Cuba Cafe, April 4-June 2, free. An opening reception takes place April 4 from 6 to 9 p.m. (545-2822)

Mililani High School, April 25-26 and May 4, 9-10, contact for cost, $5-$12. Central Theatre Academy of Arts presents “Suessical, the Musical,” featuring students from Mililani and Radford High, Mililani Middle and Mililani Ike and Mauka Elementary. May 9 features a special dinner show ($17-$30). (centraltheatreartsacademy.org)