Lanzarote is a place where you can never get bored in, there are lots of things you can do in Lanzarote.
There are lots of attractions like museums and beaches, you can even island hop on excursions to Fuerteventura and La Graciosa from Lanzarote.
There are also loads of Restaurants and bars with in-house DJ's, Karoake and much more.
The Crown is a good British pub well worth a visit in Costa Teguise.
During the day it is a nice place to chill out in and in the evenings good for entertainment, especially the Beatles Show.
Enjoy their Sunday Roast on a Tuesday. Their Fish and Chips are especially awesome.
Hope you like your time there.