This much I will say:
Never EVER assume you know your way around campus.
Not even if you've been to the building several times before. Not even if you worked on campus all summer. Not even if you've been to camps there almost every year.
Just don't do it.
Especially before your first class taught by the head of the department.
I make the best first impressions.
Think you know the way? Stop that. Stop that right now. You have no idea.
I love it here.