We walked around the towers quite a bit, and through the mall at the base of the towers. There's also a sort of park with a huge fountain in the back. The mall was where we ran into one of the annoying aspects of much of Asia, the "public" toilets require payment to use. Elevator access up the towers was already closed for the day.
We also visited the Central Market, which is an indoor bazar. There were all kinds of shops there selling everything from food to arts and crafts. From there we took a train back to the airport. Next stop: India!