How to talk to a girl who makes me nervous?

I like this girl that's in two of my classes so I have plenty of time to talk to her.But when I get in to the first class,I get nervous.I have talked to her before.So how can I talk to her with out getting nervous?How to talk to a girl who makes me nervous?
Just be yourselfHow to talk to a girl who makes me nervous?
tell her you miss her whispering eye
just realize that whatever happens, youre still gonna go to bed at night and wake up to a new day.

what i mean is everything will be okay. lol.

dont worry about it
Man up... haha. sorry. jst kiddin. But dude, condifence is EVERYTHING. you could be the uglyest guy in the world, but still get girls if you have the confidence to make up for it. A girl can tell when you're nervous, so you need to just suppress it. Get the idea in your head that she's just another girl. You need to make HER want YOU. So get over there and just to it. Be funny, and flirty. That's what a girl wants. Make yourself seem like someone a little hard to get too. Don't make it obvious that you like her. Girls like a challenge just like guys. They like to think ';you can't have this';. So get her number, start texting, talk more in person, and then ask her if she'd wanna go out on a date with u.
well... I don't have a lot of luck with girls so you can do whatever you want with this, but usually I just start out saying hi every time I see the girl I have my eye on, then starting to ask how their day is going. That kinda lets you get used to starting a ';conversation'; with her, but isn't too stressful, and if she starts saying hi back, and seems eager to talk about her day, it's generally pretty encouraging. then after a week or so, I generally look them up on fb or talk to a common friend I'm not interested in to find out what they're into (maybe you've already got that down, I dunno) and then I usually just do say hi, which they'll be used to, and the how's it going, which they'll also be used to, and then just next step ';so I found out(/heard/noticed/insert similar phrase here) that you like _______, that's really cool, 'cause I like it/them too. have you ever _______'; and just take it from there.
drink some bottle of beer or take some liquor first then hail you'll gonna speak out of your tongue and have a good talk with her.