Dane Cook, Atlanta. Comedy. 8 p.m. Saturday, Philips Arena, 1 Philips Drive, Atlanta. $30-$100. Ticketmaster.
"Portraits in Gray: A Collection of Civil War Photography," Gainesville. 10 a.m. to 4 p.m. through Saturday, Northeast Georgia History Center, 322 Academy St. NE, Gainesville. $5 adults, $4 seniors, $3 students, members free. Closed Sundays and Mondays. 770-297-5900.
Microchip Clinic & Rabies Clinic, Gainesville. Humane Society of Hall County. 8:30 a.m. to noon Saturday, Tailwaggers, 2376 Murphy Blvd., Gainesville. Puppies and kittens must be at least 3 moths old. Rabies shot, $10. Microchip, $20 per pet. $25 shot and microchip. 770-532-6617 or firstname.lastname@example.org.
Go Green Expo, Atlanta. 10 a.m. to 6 p.m. Saturday, 10 a.m. to 5 p.m. Sunday, Cobb Galleria, 2 Galleria Parkway, Atlanta. $10 adults, $5 students and seniors with ID, free for kids age 11 and younger.
Field Day, Oakwood. Lanierland Amateur Radio Club. Contest judging the ability of ham operators to respond in emergencies. Spectators can watch radio clubs compete, set up generators, antennae and radios. Saturday and Sunday, Jackson EMC Operations Center, 3704 Old Oakwood Road, Oakwood. 770-536-0964.
Book signing, Gainesville. Author Rosemary Harris Mallinson will sign copies of her new book, "River of Joy (A Healing Stream)". 12:30-3 p.m. Sunday, Unity of Gainesville Church, 3361 Clarks Bridge Road, Gainesville.
God and Country Rally, Gainesville. U.S. Rep. Nathan Deal, Ga. Rep. Tom Graves and radio host Martha Zoller will speak. 3 p.m. Sunday, Poplar Springs Baptist Church, 3101 Poplar Springs Church Road, Gainesville. 770-532-2237.
AARP Driver Safety Program, Flowery Branch and Gainesville. Licensed drivers age 26 and older can participate. Earn a certificate that can reduce insurance premiums. 8 a.m. July 9, Avita, 4331 Thurmon Tanner Road, Flowery Branch; 10 a.m. July 14 and 15, Northeast Georgia Medical Center's Lanier Park campus, 675 White Sulfur Road, Flowery Branch. $14; $12 for AARP members. 770-538-4816.
Toastmasters, Gainesville. Improve your public speaking skills. 5:45 to 6:45 p.m. Mondays, Jacobs Building at Brenau University, 340 Green St. Free. 770-294-6059 or email@example.com.
Old-fashioned square dance, Hiawassee. 7 p.m. Mondays, Senior Center, 48 River St., Hiawassee. Free. 706-896-1060 or firstname.lastname@example.org.
Southern Living Idea House tours, Dahlonega. Tour the house that will be featured in Southern Living in August. Benefits the United Way of Dahlonega/Lumpkin County. 11 a.m. to 5 p.m. Wednesday-Saturdays, 1 to 5 p.m. Sundays through Oct. 18, Achasta, 150 Birch River Drive, Dahlonega. $5. 706-867-1660.