How Can I Get This Girl To Hang Out With Me?

I'm a college student in the U.S and she is an exchange student from Australia. We met in class and always walk and talk with each other to and from class. I recently got her number, and we've texted some. She usually texts back, but I always have to initiate the texts. However she will initiate conversation in person. I want to get to know her better, but it's hard only seeing her twice a week, and I don't know her schedule. I have a huge crush on her, and I really just want to hang out with her 1 on 1 and see if that can lead to a date. She always smiles when we talk, but I don't know if she is shy over text or if she is busy, or if she just don't like to text. How can I get her to spend time with me?