Frankly, both of those suck.
And it doesn't even matter anyway. Its not so much WHAT you say, and not even HOW you say it, but really, when it comes to getting numbers, its THAT you said it.
When a girl is really interested in you, the only thing stopping her from giving you her number is that you haven't asked for it yet. Think about that. She's all for giving it to you. She WANTS you to have it. But either she's too afraid she'll be thought of as a slut/easy, or she's waiting to see if you actually have the balls to ask for it. The longer it takes you to ask, the less she'll want you to have it.
This same idea works for lots of things. Touching, kissing, sex... most of the time, the girl is dying to do these things, and the only reason she doesn't is because you haven't made the move yet. She won't do it because she wants to see if you're man enough to initiate it yourself, and/or she doesn't want the slut label. Usually by the time you've finally tried to get something started, the window has passed and she just gets more annoyed. Sound familiar?
Let's let all this sink in for a moment.
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...Got it? Good.
So the lesson here is, just grab your cojones and get her number. Do it before she changes her mind about you. I fear it may already be too late...
Class is over, please shuffle out single file. Good day.