How to approach a random guy at the mall?

I posted a question a little bit ago about why I never get approached and that my beauty probably intimidates potential guys because they fear rejection.

Which is understandable.

So I want to try approaching guys.

I know to make eye contact, smile and initiate a conversation.

But what I don't know is how to tell if I'm being blown off or if he's not interested? Will guys automatically give me a chance because I'm pretty and smart?

If the starter conversation and small talk is going well, should I wait for him to ask for my information (phone number, email or Facebook) or should I ask for his? How long should we chat for? I usually go to malls to shop, but now I have an agenda.

What would you think (guys) if a pretty girl walked up to you in a mall? This is assuming you're both alone. I would never approach anyone with a group of friends around.
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+1 y
Once again, really good answers. Thanks.
How to approach a random guy at the mall?
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