Well, there is no Nightlife spot in Pakistan in terms known as in other parts of the world. There are no bars, pubs, discos openly displayed to general tourists. But they surely are there within the compounds of Hotels.
Pakistanis really love to dine-out and the best nightlife spot for them are restaurants of all shapes, sizes and specialties.
Other than dining out, one should attend a music concert, if on the offer. Nusrat Fateh Ali Khan and Junoon are known throughout the world. Pakistani bands play guitar laden music and are also good in fusion music. Some good players other than Junoon include Hadeeka Kiyani (female), Ali Haider, Noori, Fuzon, Raheem Shah, etc. Fuzon especially have fused rock and classical Asian sub-continental classical music very nicely.
In the pix, my brother-in-law namely Owais, nicknamed 'Ozzy Beardmore' plays riffs and bluesy rock music in Bangkok, Thailand with a local band there whose guitarist was ill, as conveniently as he does in Pakistan and in New York at NYU. At the end, he received standing ovation by the gathering.
Please search for websites on Pakistan music, culture, entertainment industry.
Dress Code: See under culture. Wearing Pakistani style clothes will earn foreign women lot of admiration and respect. Once inside the crowed, you can dance to the tunes as you wish and except for drinking alcohol, do whatever audience would do in the West.