Best way to ask a girl out

What is the best way to ask out a girl you dont know?

Well, girls like when you give them copliments and call her beautiful and use cheesy pick-up lines if you don't know the girl make an effort to get to know her and commit to it some girls don't like this stuff but most do and don't try too hard girls aways know when you are trying too hard

How about you get to know her first. I deffanity wouldn't date someone who just came up to me and asked me out that I didn't know. A lot of people get turned down when you do that.

get to know her call her beautiful, if you like the same bands say "we should catch a concert sometime"
if she agrees, just tell her you like her and ask her if she wants to be your girlfriend.