For simplicity I'm gonna assume you're in the US and since you're 20 you most likely can't go to bars, and even if you can, a large part of college social life revolves around house parties even among students who are 21+.
Like someone above me said, talk to everyone all the time. If you haven't had a girlfriend before, you're most likely on the shy side. Striking up lots of conversations with random people is a good way to help get over shyness. Doesn't matter who it is, just talk and joke with people. The more people you talk to, the more people you'll know, and everything else being equal, a girl will always prefer a guy who knows a lot of people to a guy who doesn't.
Texting should be mostly used for logistics but there's nothing wrong with flirting a little bit over text and when she's using a lot of smiley faces and exclaimation points, it's a good sign. Just don't overdo it and definitely send her fewer texts than she sends you.
Dinner and movie dates are for girlfriends, not girls you're attempting to bang. Take her on a hike, go play putt-putt, go to a baseball game, bring her to a house party you got invited to.
Girls don't want to sit and listen to some guy bragging about himself but they love to talk about themselves. Ask them interesting questions. Playfully tease them. And don't be afraid to be the one to end the interaction. Tell them "I gotta go catch up with so and so but I'll come find you in a little bit".
It's tough to isolate a girl from her group. Just talk to the whole group and if one of them likes you she'll isolate herself.
Like someone above me said, talk to everyone all the time. If you haven't had a girlfriend before, you're most likely on the shy side. Striking up lots of conversations with random people is a good way to help get over shyness. Doesn't matter who it is, just talk and joke with people. The more people you talk to, the more people you'll know, and everything else being equal, a girl will always prefer a guy who knows a lot of people to a guy who doesn't.
Texting should be mostly used for logistics but there's nothing wrong with flirting a little bit over text and when she's using a lot of smiley faces and exclaimation points, it's a good sign. Just don't overdo it and definitely send her fewer texts than she sends you.
Dinner and movie dates are for girlfriends, not girls you're attempting to bang. Take her on a hike, go play putt-putt, go to a baseball game, bring her to a house party you got invited to.
Girls don't want to sit and listen to some guy bragging about himself but they love to talk about themselves. Ask them interesting questions. Playfully tease them. And don't be afraid to be the one to end the interaction. Tell them "I gotta go catch up with so and so but I'll come find you in a little bit".
It's tough to isolate a girl from her group. Just talk to the whole group and if one of them likes you she'll isolate herself.