It all depends on what you're studying.

Social sciences are usually just like that, though I don't know how it's possible you only have two hours of class each week. You go to class, listen to a prof and to some wannabe intellectuals who've just discovered Marx/Foucault/Kershaw. It lasts around 15 to 25 hours a week and it gives you more than enough free time to get drunk, play games and flirt.

Hard science on the other hand are another matter, as I understood. Much more demanding.