If you want to see a show while you're in town, try and grab some tickets at Blumenthal Performing Arts Center in Uptown Charlotte. If you enjoy the show and want to see another, McGlohon Theatre, Spirit Square, and Afro-American Children's Theatre are all a short walk away.
If you want to give your credit card some exercise, head out to Queen City Quarter in Uptown Charlotte. It's also full of great shops and restaurants, so you can spend the afternoon having a wander.