Oh, it is still the morning of the first day. In fact, you can just read the first post in the IC and then you can explain how you character spent his morning. Then how he went to class, etc.. For sake of interactions, you can also get to talking with Touko if you want to take the seat beside her. Not until later will we see actual action, since we are just starting. If you have any more doubts, don't hesitate to ask.