I took figure drawing in college, but I waited till my junior year which helped since the whole naked people thing was less of an awkward concept by then. It would of felt weird if I was still a freshmen maybe because of how shy and innocent I was at the time. (note my friends said I was innocent, so going off that basis)
I went to an all girls college, so to see a completely naked man standing in our small class room was awkward at first, also our art teacher made him do really weird poses that he had to hold a stick to stay up and could only be in the pose less than a minute due to the strain. It was a bit weird, but you had to draw so fast that you didn't notice. O_O Was like 20 secs flip page 10 seconds flip page etc.
Also he was super confident, he would have a whole conversation about his kids while he was naked.