OAKLAND/EAST LIBERTY: Contact Pittsburgh, a crisis and suicide hot line, is looking for nonjudgmental listeners interested in volunteering to provide emotional support to adults and teens over the phone. Registration begins for two training courses: 6 to 9 p.m. Oct. 10, 17, 24, 26 and Nov. 7 at the United Cerebral Palsy building, 4638 Centre Ave., Oakland; and 9 a.m. to 2 p.m. Oct. 14 and Oct. 21, at Big Brothers and Sisters, 5989 Penn Circle South, East Liberty. Call Christy Stuber at 412-820-0100.

HOMEWOOD: East Side Community Collaborative sponsors a resource fair from 1 to 6:30 p.m. at the Greater Pittsburgh Coliseum, 7310 Frankstown Ave., to inform residents of services, businesses and organizations in Homewood. The collaborative also presents its Asset Based Mapping Program. Those wishing to reserve a table can call 412-243-2900, Ext. 41.

CARRICK: Mayor Luke Ravenstahl shares his insights and plans for the city at the 29th Ward Block Watch meeting from 7 to 9 p.m. at Roosevelt School, Brownsville and Cherryhill roads.

SHADYSIDE: First Unitarian Church, Morewood and Ellsworth avenues, presents "An Inconvenient Truth," a film based on Al Gore's book on global warming, at 7:30 p.m. Call 412-621-8008.

DOWNTOWN: Concerts at First Church: Music for the Spirit, a new series at First Presbyterian Church of Pittsburgh, 320 Sixth Ave., kicks off the 2006-07 season at 7:30 p.m. with a concert titled "Wondrous Machine." Church organist Andrew Scanlon presents a program of works on a four-manual, 77-rank Casavant pipe organ. Donation is $10 for adults, $2 for students. Call 412-471-3436.

DOWNTOWN: Smithfield United Church of Christ, 620 Smithfield St., holds its Apple Festival in Strawberry Way from 11 a.m. to 2 p.m., with live music, a variety of apple delights such as pie, dumplings and cider, plus other foods. In case of inclement weather, the festival will move to the church social hall.

ALLENTOWN: Hill Top United Methodist Church, 631 E. Warrington Ave., holds its annual bazaar from 10 a.m. to 2 p.m. It includes a flea market, bake sale, vegetable soup sale, crafts and a ticket auction. Call 412-882-0230.

BROOKLINE: An Autumn Car Cruise sponsored by Citiparks runs from 6 to 9 p.m. at Brookline Memorial Recreation Center, 1400 Brookline Blvd. Call 412-571-3222.

DOWNTOWN: David L. Lawrence Convention Center is the site of the 2006 Pittsburgh Pet Expo from 10 a.m. to 6 p.m. today and 11 a.m. to 5 p.m. Sunday. It offers interactive entertainment, seminars, a pet costume contest, pet tricks, question and answer sessions with veterinarians, plus visits by WTAE-TV personalities with their pets. Tickets are $8 at the door, free for children 12 and younger accompanied by an adult. Pets on a leash are welcome.

HIGHLAND PARK: The Tuesday Musical Club holds a recital at 2 p.m. in St. Andrew's Episcopal Church, 5801 Hampton St. A reception follows.

HILL DISTRICT: Your Sister's Project Inc., a community-based social service and human service organization, presents a free HSBC Your Money Counts Adult Financial Literacy Workshop from 10 a.m. to 3 p.m. at Monumental Mission Ministries, 2228 Wylie Ave. Topics include managing your money, credit history and identity theft. To register, call 412-288-2501.

LAWRENCEVILLE: New Bethel Missionary Baptist Church, 221 43rd St., holds a gigantic flea market from 9 a.m. to 2 p.m.

SHADYSIDE: A rummage sale from 10 a.m. to 2 p.m., sponsored by the Women of Third Presbyterian Church, Fifth at South Negley avenues, benefits Off the Floor, an organization which provides basic needs to poor families.

SHADYSIDE/OAKLAND: A Community March for Sustainable Living begins at 2 p.m. at First Unitarian Church, Morewood and Ellsworth avenues, Shadyside, and ends at Flagstaff Hill in Schenley Park, Oakland. There are speakers and information on sustainable living from 4:30 to 6 p.m. on Flagstaff Hill. Sponsors are the church and Association for India's Development. Call 412-683-1315 or visit www.geocities.com/sustainability_march.

SOUTH SIDE: A Fall Food Festival at St. Vladimir's Ukrainian Orthodox Church hall, 73 S. 18th St., features a ticket auction, Ukrainian pysanky (Easter eggs), a bake sale, plus stuffed cabbage, pierogi, borscht and other foods.

OAKLAND: Animal Friends holds its 12th annual Howl-O-Ween Pet Parade and Costume Party from noon to 3 p.m. at the Vietnam Veterans Shelter in Schenley Park, with a pet costume contest, family games and holiday goodies. Del Monte Food's traveling Mutt Mobile takes photos at its Kissin' Booth as part of a search for America's Most Smoochable Pooch. Dogs must be on leashes, and cats and other small animals must be in carriers. Advance registration is requested. Proceeds benefit Animal Friends. Call 412-847-7055.

OAKLAND: The Catholic Historical Society of Western Pennsylvania presents Malek A. Francis, national chairman of the American Lebanese Congress, speaking on "Lebanese Immigration to the United States and Western Pennsylvania" at 2:30 p.m. in Synod Hall, 125 N. Craig St. For more information, visit www.catholichistorywpa.org.

SHADYSIDE: St. Andrew Lutheran Church, Centre and Morewood avenues, shows the film "An Inconvenient Truth," based on Al Gore's book on global warming, at 1 p.m. The church focuses on the issue because it believes the widespread impact of global warming will mostly affect the poor. Call 412-682-3342.