If you know how to say the place you want to go and have cash, it's all about the taxi. Subway is fast too, but only if you're not stuck in rush hour lines. Not to mention it takes a while to figure the system out.

subway is the most easy way for foreigners, but if you are confident about yourself, try bus , that is the most hard way i think taxi only works good when you need to go greatwall or somewhere has not subway could get .

Oh. i think Metro of Peking is far cheaper and more convenient to use. It's really a tough time to take buses if you can't speak Chinese at all because no one will know where do you want to go, you must take some paper, which wrote the street's name with you. Taxi is not very expensive too, it's more comfortable and such a direct method to reach your destionation.

you can make some firends come from beijing China.when you visting in china.i think they will give much help for you.they will glad to be your guide.no matter which way you will go!

subway is very convenient and very very cheap！! ！However avoid the traffic jam. It's so horrible~