I do day game street approaches also malls sometimes shop

I will say "Hey, excuse me," to get their attention, so she processes someone is actually talking to her specifically and not someone else. Clear loud voice and eye contact.

Then "I want to meet you real quick. I'm John. What's your name?"

Then the crucial part: "I stopped you because I thought you're cute. What are you up to today?"

The crucial part is that she will wonder why you are talking to her, are you a salesman, a religious person, doing a survey? She will wonder why this dude is talking to her until you make it explicit.

If she's nervous I'll say "Yeah it's pretty crazy meeting someone like this, anyway.." then go off on what im doing why im there, "waiting for a friend" whatever.