There are several types of yarn-over, depending on how many times the yarn is wrapped around the knitting needle and on the direction (chirality) with which the yarn is wrapped.
There are knitting needle caps for both one and two needles.
When casting on at the beginning, one end of the yarn must be secured to the knitting needle by knotting it, usually with a slip knot.
The shirt is a bit open and this opening is made by knitting needle.
Later the apron was worn which was done in a loom and was decorated with broidery made by knitting needle and was usually black.
Put your knitting needle through those bumps and knit through it as normal.
Knitting and crocheting involve interlacing loops of yarn, which are formed either on a knitting needle or on a crochet hook, together in a line.
It felt like a knitting needle covered with one or two layers of soft leather.