No big deal. There are millions of other women. One of them saying no shouldn't even bother you as the other 999999 still may say yes. If you talked to 10000 women in a short time and only 100 would be interested (where 1% is a horrible success rate, BTW), that's still 100 interested women. Imagine 100 women wanting you. See what I mean? The important is not how many women say no but how many say yes.
@Tuggernuts: Though, it's not the words, it's how you deliver them. For all I care, I can tell a girl that I'm a magical space bunny and she has to feed me chocolate and it will work, because of my posture, my voice tone and my eye contact. Depending on the intensity that I want to communicate, I turn my body towards her or to the side. Depending on the care/confidence level I want to demonstrate, I pierce her with my eyes or look around while I talk. And I always use a calm, slow and deep voice projection. Anything less than that is not acceptable.
Also, there are two kinds of laughs. One is when she laughs at you (very, very rare) and the other is when she can't believe what she's hearing. Obviously the latter is the good kind. I always look at it that if she laughs, you're in. You may have to back up what you said.
People are basically the same everywhere. The differences are really minor.