After our dinner at Hotel Splendid we walked around the streets near our hotel before calling into Restaurant Karawan for a mint tea. In true Tunisian style he sat us down and our drinks came from another place down the street. The mint tea was great though, while the terrace at Karawan was a nice place to sit and watch the world go by. The cafe next door looked lively, with plenty of local men sitting out drinking coffee and smoking chichas. Our waiter was very friendly and spoke to us a bit in French, and he also took a picture of us on his terrace. We told him we'd return for lunch the following day.
The turkish cafè at the hotel La kasbah. There's generally not much nightlife in Tunisian towns and cities - so the most you can find is inside tourist hotels. At café maure you can sip delicious mint tea or turkish coffee, eat sweeter than sweet Tunisian pastries, and happily smoke nargileh.
Dress Code: Formal or informal, no one really cares. But there's no heating, so wear something warm in winter.