You’re going to be moving to London; you’re prepared and ready to take on the British Empire and you’re ready to fit in with Londoners wherever you meet them. How hard can it be? You speak English and the English speak English… or do they?
If you are moving to London and plan to stay for a few years, then you might like to have an idea about some of the differences that you’ll find between the cultures of the United States and England. It can be confusing when you first move to a new city in a foreign country, and you may be tempted to stay away from mixing with people for fear of ‘getting it wrong’. You might also be tempted to find groups of expats living in London and make them your main social contact group.