She'd been loitering around the grounds, just enjoying the good weather and the small break from studying she'd given herself. Maybe go see if there was anyone to spar with in the gym? Naaaah, it was far too hot for hopping about and trying to beat up on someone. Best just to lie back here on the grass and enjoy it for what it was.
A break in the tumult of everyday life, where she didn't have to worry about classes, all her homework was finished and no emergencies were looming on the horizon.
Just pure, honest relaxation.