Hey excuse me, I'm on my way home but, I think you're just absolutely gorgeous and on top of that you seem really friendly (or however I really feel about them). I just wanted to come up and say hi. So hi, I'm Robert. (Then they reply with their names)
I then sometimes find myself saying something along the lines as:
Listen I think you're very smart as well (or what I actually do think about them) and I'd love to get to know a little bit about you.
After this point however, the following conversation is not as great or as bold. Please help. I really don't want to struggle with women

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