What is Crochet?

can somebody explain me crochet? I don´t speak english, so the gramatic can be incorrect.

crochet is pulling a loop through another loop.
You can do it with your fingers to start with.
Make a slip knot then just pull yarn through it.
then pull yarn through that loop. keep going.
to make a garment, use holes already made to pull yarn through in rows like knitting.