The instructor is twenty-something, acts unsure, and says "you know" at least once a sentence. He repeats himself a lot, and goes rather slowly, and spends about as much time informing you that he'll go over this in more detail next week as he does actually teaching. He's not my idea of a skilled teacher.
But. He keeps a tape measure in one pocket, and a pencil in another, and whenever he wants either, they just appear in his hands, like a conjurer with a silk flower, or the way I've always imagined a stiletto in a wrist sheath would work. He appears to be entirely unaware of this bit of small magic, born of years of practice, but I spent a great deal of his boring, repetitive lecture watching tools appear and disappear at will, and I was very entertained. He reminds me, a bit, of my glassblowing instructor, all motion and ease, beat and breath. There's a music to that degree of competence.
I want to be that good at something someday.