Dating internationally will either make it more so or raise the chance to finally get the partner you've been looking for all along.
I use it daily to commute to work and the biggest differences between London's tube and Beijing's metro is the cost and the crowdedness.
The metro is very cheap, just two yuan per trip (about 19p) no matter where you're going. Beijing, in terms of its metropolitan area, is actually similar in physical size to London – but in the same area there are three million more people than in London.
On the Beijing subway, it sometimes feels like the extra million are all on the train with you.
Just trying to talk to a stranger, let alone finding love and attraction, within the confines of such a subway is like trying to pet a puppy in a war zone.
Otherwise they would listen to music – and people blocking themselves away from their immediate surroundings was one of the biggest obstacles during my challenge. Buskers, beggars and cripples sometimes roam the trains.