As I work on Facebook/twitter and all social media I found that these are the both effective ways to spread anything.
We can also use that to spread about bitcoin in Pakistan. Almost everyone in Pakistan uses internet mostly I found people uses Facebook even they don't know how to use the web but these kind of peoples are useless for bitcoin or we have to teach about btc.
But we don't know when enough people start using bitcoin what will be the step of PAKISTAN'S Government maybe they will not support bitcoins and will ban?
So many issues will rise with the number of users.