I much rather prefer texting. It's more convenient, as you can reply to it whenever you want, and it's better than talking, since if you make plans via text, you'll have some record on your phone about when to meet up and stuff, while if you just agree to it while talking to them, you may forget, like I do.
That, and it's easier to text people in class than call them
That, and it's easier to text people in class than call them