I was already a pretty big anglophile when I met Jamie, so I was already into football, Brit music, curries, lager, etc. But now I can add:
-duvet with no top sheet
-European wines (I'm a wine snob but never got too far past California)
-roast dinners
Not many things, I know, but I really was the most Anglicized American I know.
Things he's tried to convince me about to no avail:
-pickled onions
-steak and kidney pie
-the notion that playing the stupid "fruit machines" in pubs is a good use of money