The restaurants are the natural place for a drink, however there are many Lao beer places in town. The one opposite Maly Hotel is located on a small lake. They serve Tiger Beer and have a good menu with fresh fish. There is a similar place on the other side of the lake, directly opposite the hotel.
There is a discotheque at Chittavanh Hotel popular with the locals and well, catering to local tastes. The only alternative is a very similar place aptly named Highway Karaoke, which is at the crossing from the mainstreet to the airport street.
Opposite Highway Karaoke is a new place popular with the village youth (and owned by the same family that runs Simmaly restaurant and internet cafe).