That really is the best way to watch soccer, find somewhere that Brits are watching the game, find a group, buy them a round, and learn. Chance are this place has better beer than the average American mass market filth too, so you'll also get to learn about good beer while you're there.
The only reason I know this is because my bf is English...I know more about the the EPL then I ever wanted to know...thankfully I dont retain much of it ;) Watching a live game at a pub with friends IS fun though.