But crucially, it also enables one person to contact another within a 10 metre radius without knowing their phone number.
It happens in malls, cinemas and cafes - in Dubai's notorious traffic jams, and now by mobile phone.
Honestly it is diffucult to meet decent people through the net, and many take advantage of our loneliness and being away from our homeland.
Many asian ( indians/paki/afghan/pinoy ) men are ruthless here, especially since they form such a big community they leverage their presence upon others.
The case in point is Tinder for being the most popular dating app.
It is not just a huge hit with singletons, but it has also become popular among prostitutes hunting for clients.