Fun is sure to be had, in the form of one (and only) older brother. Dirk is on his way somewhere or another. Probably the quidditch pitch, considering the broom he has balanced over one shoulder. It doesn't matter that the season is over, with Gryffindor winning. With exams out of the way, and games done, it's a good way to have fun without interrupting anyone doing something important.

It doesn't mean he doesn't have time to nod hello to his little siblings when they pass him in the hall, though.