Cruzcampo which is the tradional spanish beer is served everywhere as is various spanish wines. Again, lots of places to drink and eat.
Mijas is not really a place for a mad drunken sleazy night out the nearby town of Fuengirola is better for that, however there are many smaller bars and cafes where one can have a civilised drink. The Boveda del Flamenco bar is a fantastic little place, which used to be the old village jail. It is excellent to sit outside in the Summer and watch the world going by. Although many local Spanish residents have their own ways of hanging out in Mijas, discotheques and others are not in the area except nearby cities. If you fancy something to eat or have a nice meal, there are many restaurants about.