Good work, Jocko. A good starting point for mongers new to Shanghai.
Importantly, if the girl does speak some English, remember to speak clearly, slowly and avoid complicated bar/pub talk -- i.e. don't speak to the girl like you would to a group of mates at the pub in Toronto during happy hour and then expect her to understand. Think about what message you're trying to convey and how to explain it as simply a possible.
I have seen so many laoweis here using fast, complicated and heavily accented English to confused-looking girls, which just sets them up to fail and immediately reduces their confidence to understand anything else you're likely to say.
a.t.