I am learning - I am knitting a plain neck scarf and I have finished one ball of yarn - how do I attach the next ball of yarn to go on knitting? :XX:
Joining another ball of yarn
That’s just what you do, go on knitting. Start knitting with the new ball, making sure you leave enough of a tail to come back to later to weave in once you’re done with the whole thing. It’s usually best to change at the beginning of a new row, and if you want to and have enough of the old ball left, knit a couple stitches with the old and new strands held together, but make sure you treat those “double” stitches as one once you come back to them, but it’s not entirely necessary to knit old and new simultaneously, you can just start with the new.