6. You hire a Boris Bike and ride it on the pavement so pedestrians have to dive out your way.
You can get a ticket for that (not that I know from personal experience)!
7. You assume all the barmen in London are really friendly but it’s just because you’re severely over-tipping them.
This goes for cab drivers too.
25. You get too drunk at the pub and attempt to start a round of “God Bless America.”
You’re the only one singing.