My question is exactly HOW do you join a new ball of yarn?
I've read through many many posts here and not found an answer to this question. In fact, everything I've read says to "just start knitting with it," and that's not helpful at all!!
So do I form a loop with the new yarn and put it on the left needle? If not, how do I attach the yarn to the left needle so that I can then work with it?