>>49950890DO:
Be macho.
Don't be afraid to drop how info about how you have a cool job and make plenty of money. It's not considered rude and you want to demonstrate that you're proud of yourself.
Be sexual with your flirting, but don't come off as thirsty. Pretty much the same as with American girls on this one.
Ask her a lot of questions about her family. This is super important in Vietnamese culture.
Compliment her English.
Talk shit about China.
DONT:
Be really careful if she starts talking about marriage or immigration. She might be a paper chaser.
Don't try and have an in depth discussion about the war. If she's talking to you she's probably not a gommie, which means the subject probably makes her uncomfortable.
Don't be an elitist about either American or Korean culture and economics.