Buy a ticket to see a game at Convocation Center. If there's nothing scheduled while you're there, you might like to check if the stadium offers a guided tour of the grounds.
If you've got time to stop for a while in Athens, Convocation Center is a good place to start your exploring. This sporting facility is one of many attractions that'll keep you occupied here. Ohio University, Hot Dog Museum, and Strouds Run State Park are also ready to be explored nearby.