Not knit one pearl one. Only one crochet needle and a finger and thumb required. Twisting and turning, wrapping the wool round and knotting it.
If you want to learn it have a go. You can make squares to create a blanket, or crochet round and round to make a throw. It’s a craft in the same way as knitting or macrame. There are plenty of patterns out there and you can make clothes too. If you look on line you can find some very strange crocheted trouser suits for men! I realise that it was more popular in the 1970’s…..