I live in London, UK. Most American expats/tourists/international students I meet can hold a conversation and do not expect you to do all the legwork. Their signals inviting you to approach are so plain as day that you really have to be an autist to ignore them. I've even had one approach me.
On the other hand, most British/European chicks I meet are so reserved and nonchalant that you really have to do all the chasing. They make the field reports on here look like fiction. While I believe that the core TRP principles apply to most women anywhere in the world, I feel that everything in between is catered more towards American women.
TL;DR: If I'm a 6/10, I believe I would have to do the same amount of work to game a 9/10 American chick as I would a 6/10 British chick.
Does anyone agree or disagree? Curious to hear your thoughts.