Well, as you will find out, there is a great number of cafes in Tuzla and they are mostly located in the downtown pedestrian area and Korzo. Of course, you can go to a cafe somewhere else, but that's not where the people are. :) Especially in the summer, you can sit outside and watch people passing by, and believe me, there are a lot of people on the street. Most of the cafes have the same kind of music and beverages, but there are some that don't serve alcohol. Also, most of the people don't really drink when they go out, except maybe a beer.
There is also EKV for those of you that enjoy hard rock. Not my kind of place, but I am sure some of you could appreciate it.
There are also a few night clubs, but I have to warn you, they are mostly filled with teenagers.
The best places to go after cafes close around 11 or 12 are "Dom" (behind the courthouse) , jazz club "Klub Plus" in the part of town called Iratz (ask for old cinema "Radnik") and club called "Underground" right on Korzo, which I guess is the easiest to find.
If you like live music, some of the cafes on Korzo provide it during the summer and it's a mix of Bosnian pop and folk music, mostly pop.
You can also go to the "Vrtich" restaurant and get good food with live music.
Cafe Sydney is very nice. They have three locations, one in the theater building in the center, another in the colorful building just before the Merkator Shopping Center (go straight from Korzo towards Sjenjak and you will run into it) and another in the Sjenjak Shopping Center.
Still Korzo is the place to be between 8pm and 11 pm. Bustling streets, thousands of people outside in one place, very nice atmosphere. Good coffee for little money (1 km). Also, if you want really good cake, go to the new shopping center at Sjenjak (Syenak) into a place called Picollo Mondo. Best cake ever, huge pieces for only 1 km. You can also sit outside there, have coffee,coke or lemonade and really good ice cream with your cake.
Dress Code: As I said in packing tips, try to dress hip and nice. Everyone in Tuzla, especially at night, is dressed up.
Latino Klub Flamenco (Kapija, formerly known as 'Leonardo' and 'Gymnasium')
It's a very cool places. Awkwardly big yet pleasant, touristy yet with a home feel. Parties on weekends, ranging from pyjama parties to free dance and Spanish lessons. My favourite spot.
Dress Code: No dress code, truly, except for certain occasions like PJ parties, although you can even come without your PJs on these parties, just that you're not part of the fun that way...