* Catoosa County Democratic Party: Caffeine Addicts Coffee Shop, 7819 Nashville St., Ringgold, Ga., 9 a.m., visitors welcome. 770-826-8644.
* Special Olympics: McCallie School, 500 Dodds Ave., 10 a.m.-2 p.m., Lloyd Ray Smith Spring Track and Field Games. Carlene Melton of Orange Grove Center to be honored as Athlete of the Year.
* Book signing: Lifeway Bookstore, 2200 Hamilton Place Blvd., 10 a.m.-2 p.m., Lisa Maro signs "Genesis." 227-5848.
* Antique tractor and engine show: TSC Tractor Supply Co., 222 Sequoyah Road, Soddy-Daisy, 10 a.m.-3 p.m., free, sponsored by Days of Yesteryear Antique Tractor and Engine Club of Dunlap, Tenn. 949-6537.
* Kidz Expo: Chattanooga Convention Center, 1100 Carter St., 11 a.m.-7 p.m., $7 per person, $25 for family of four. Children's activities, vendors, special guests Ross Lynch and Laura Maran, sponsored by Chattanooga Times Free Press. 757-6308.
* Walker County United Progressives: Triple Y Mexican Restaurant, 2078 North Main St., LaFayette, Ga., 1 p.m., free open forum hosted by new group of progressive-minded citizens to discuss issues such as universal health care, increasing voter participation in elections, protection of social security and fair taxation. 706-764-2801.
* Soddy-Daisy Distinguished Young Woman Program: Soddy Elementary School, 260 School St., 6:30 p.m., $15, winner will compete in state Distinguished Young Woman Program (formerly Tennessee Junior Miss.) 867-2454.
* Southeastern Bluegrass Association: Silverdale Cumberland Presbyterian Church, 7407 Bonny Oaks Drive, 2-5 p.m., players of all levels welcome to meeting and jam session. 624-3063.
* Rummage sale: First Baptist Church, 2645 LaFayette Road, Fort Oglethorpe, Ga., 8 a.m. each day, sale of gently used furniture, clothing, electronics and household goods. 903-2365.