Even knitters click and clack quietly as they work.
But crocheting is quite a peaceful, non assertive occupation. If you pick a simple project and count quietly, you can watch TV, or converse with friends. And the equipment is minimal too. no expensive sewing machine, or free arm quilter. No wheel or kiln.
Just a hook and some yarn and you are off!
The other essentials are small sharp scissors and a tapestry needle. I lost mine while on holiday in 2013 and found that not every store carries them! I ended up buying one from a kind knitter who ran a yarn store in Oamaru, NZ. She sold me her own needle out of her kit. I am very careful not to lose it! It has a large eye and works well to weave in any ends I have left over.
A delivery of tiny hats is on its way to equally tiny heads at the RA NICU.