I was shadowed last year, and I definitely had fun - I think my shadow did as well! Just to add to what Languages Nutter says: what you do will really depend on what your shadow has timetabled that day. For NatSci I'd imagine you'd have a reasonably full day. As it happens, the day my shadow came, I didn't actually have much timetabled, only one hour of translation classes. So I took her to that class, went to a lecture for a paper I don't actually do, and arranged for her to go to a friend's supervision. We went round town a bit, saw some sights, and CUSU arrange social activities, like a formal dinner (don't worry about dressing up in suits/dresses, it's an informal formal dinner), and a pub quiz, debating workshop etc. I think my shadow went to a supervision rather than the workshop, so I mean, it's flexible. If you find something you'd rather do, or the person you're following suggests something else, go for it. I hear the debating workshop is really good though! Oh, and you might well get to know the other shadows (it sounds so sinister like that! :x ) at your college, since you'll be having (free!) meals there together with the other shadows and their students. Everyone will have a slightly different experience because the people their shadows will have different timetables, different subjects, different personalities etc, but I think there's enough planned to keep everyone busy, but also enough free time to get to know people and explore a bit!