whenever i meet someone new and i would like to go out with her in different circumstances (more privatelly) i tell her
"hey, you know what?, i know this restaurant/bar/club that you might like, want to go there next friday/saturday?(deppends on availability)
if she is interested she will say yes
if she is not she will say no (sorry dude, better luck next time)
if she doesnt know she will say "let me give you my number" after wich i call her one day before the set time (doesn´t matter if its being one week or one day, or 12 hours), then ask her again, of course this will result in her saying yes or no deppending on her mood, if she says no again, shrug it off and find someone else
if you ABSOLUTELLY need to go out with her, just remember to ask for her AIM BEFORE asking her out, that way you can "catch her" some time later and try again, this time, no interest should be shown about you wanting to date her, at least a couple of times, untill you see she starts to trust you (like she starts talking about her friends and work/school) "then" you ask her out again, this is rather difficult because the first few chats HAVE TO BE ABSOLUTELLY MEANINGLESS, so that she doesnt feel threatened my method? stupid jokes about EVERYTHING, then some "more or less" personal questions "wich school did you went?" then more "deep" questions "how do you feel about videogames?", untill she starts chatting with you instead of you with her, believe me, there IS a difference, this will take no more than 5 or 6 chats over one month, then she will say YES
its worked more than you can ever imagine, so dont you dare doubt me!