But if you travel to london to learn English, you'll end up with a terrible English accent! lol (Eliot is gonna kill me for this!... or at least give me a lot of thumbs down) :P] As for suggestions on practicing English over there, just go interact with the natives as much as possible in as many circumstances as possible. It helps too if you can find a good language exchange partner.

Go to a non-tourist area, find a pub, approach the bar, order a pint, stand there, talk to whoever comes along. (this is a serious suggestion, by the way!)

so nice！