The introduction I love:
Hello how are you? My name is ____. I noticed you and wanted to introduce myself to you. Short convo blah blah...I would like to exchange numbers but if you don't feel comfortable with that I'll give you my number. Maybe we can have dinner or a drink sometime. It was nice meeting you.
I've only been approached like that once.
Do Not Say
Say red, mami, boo, shawty, yellow, stout junt (southern ghetto compliment believe it or not)
You: Ey scruse me, you gotta man?
Me: Yes (lying)
You: Are you happy?
Me: Yes
You: Do you cheat?
Me: WTF?
Another case, true story
You: Hey bru-ti-ful....(yeah that's what he said..brutiful.)
Me: <Blank stare>

You: Is u married?
Me: Yes, showing my ring (I'm lying but I occasionaly wear a ring to keep the strays away but sometimes it doesn't work, cause he approached me.)
You: Girl that ain't no wedding ring. This is a wedding ring (and he shows me his wedding ring.) So can I have your number?