Really simple question. I followed a cute girl from university I want to ask on a date. We spoke a few times, nothing major, but I couldn't ask her on a date since she skipped our last few classes we had together. Asking out in person is no option since I wont return to university until next fall semester.

Should I ask her out directly (within the first couple of messages) or text for 2-3 days before asking her on a date?