Rose, let the end dry out and then stick it in very well draining mix and don't water it too much, instant plant.
Marion.

I have potted different sizes A very large one recently , I just broke the piece off (I was told not to cut it) I left it for two days to dry the tip, then I Planted it, that was 6 weeks ago and now it looks great

Thanks for the sage words. The nursery person failed to turn up and I identified a spot where I'd really like it to grow: in sandy soil near an east facing brick wall. Would be fine to have a succulent there because of the T (termite) problem. It took a lot of getting out because the nearby golden cane palm had it well anchored in with its roots, rotten thing. I bent the crowbar! There was no thought of being kind to the palm. Rose.