How to talk to a girl?

^I think Kitsune actually sums it up best in this thread so far. It's definitely something you can practice here and there with a few small steps each time.

You're going to have to put yourself out there and probably get blown off a few times before you start to understand what your style of talking is. It really is a lot easier with strangers like Kitsune said. To add to his wonderful advice, don't talk about yourself talk about her. I don't mean not answering her if she asks about you. For example, you're talking to this cute cosplayer that you took a picture with and you ask her what her favorite anime is and she says (something generic like fairy tail :p) you don't say "oh I love fairy tail! Natsu is my favorite but grey is also really cool. I have some fairy tail tshirts. My favorite episode is 111. Where ya from?" In that example you basically only talked about yourself and didn't let her talk about why she likes fairy tail. You might think I wont do this but it happens all the time and girls hate it. Throw little pieces of what you like here and there while focusing the conversation on what she's interested in. Like instead of "oh I love fairy tail! Natsu is my favorite" say "Fairy tail is pretty awesome. Who's your favorite character?" Ya feel me homie? This has worked many a time for me.

Thank you guys for sparing time to read out my question and answered me. Recently, I have started a friendship with girl through online. Through our conservation, I am very much impressed about her attitude. On coming month, we are planning to meet. What are the steps should we take at the first meeting to impress her?

As dorky as this sounds, simply be yourself. Don't lie, cheat, steal, fart, bend over in a funny position, or stare at her for too long. lol The rest is common sense. Have I forgotten to add anything to that list? Let me answer that question for myself. "YES! I HAVE FORGOTTEN MANY THINGS! SO BE AFRAID! BE VERY AFRAID!" -Hides behind Tohru Honda-

@adam I don't think you need to impress her. I mean, you've pretty much laid down the ground work. She's interested enough to meet you. Just be yourself and not worry so much about trying to impress her or to look cool. There's no way of predicting how she's gonna feel about you when she meets you. This is literally like the test you can't study for. Just go and meet her confident in yourself!