What were your first year classes like? Mostly lectures? Lot's of discussion? Was the general tone of class different, perhaps even elevated, from what you were used to in undergrad? What strategies did you find successful in specific courses? What were professors expectations like?
First year classes were mostly lectures. there are a couple classes designed for more discussion based learning (i.e. access to justice), otherwise it's only lectures (and tutorials should you choose to attend).
For the purposes of this question i'll assume you did a BA in something... it's not that much different. There is more material, and it may or may not be more complex, but otherwise the format is generally the same (go to lectures, do your readings, write exams, etc.)
I found that my strategies varied a lot from the class. Some profs rely on the textbook, others don't even require readings from a textbook, sometimes it's useful to read the text before class, other times it's not. It really does depend on your prof. What I did find helpful is taking really good notes on material for the week of that class, so that way come December or April, you don't have to spend time going back and making better notes (and make sure you are always caught up! it will seem overwhelming if you get behind).
Prof expectations: I would say they are very cognizant of the fact most students haven't taken any law classes before, and in first year (especially at the beginning) they will walk you through it.