First clean the knife you might be using.
Keep the knife under hot water and clean them well. This prevents you from unnecessarily transferring bacteria during the propagation.
Do you happen to have disinfectant or pure alcohol? Disinfect the tools after using hot water. Let's get away with those bacteria and fungi!
Lay down an old towel.
Remove the Cordyline from the pot. Shake the plant above the pot to loosen the old soil. Remove as much soil around the roots as possible.
If you would like to propagate a pup that is low on the mother plant, it is best to carefully dig out the Cordyline plant. This way you not only expose the pup, but also the roots.
The same applies to propagation from the leaves. Cut the leaves as close as possible from the mother plant.
Let the cuttings that have roots dry for about 4 days. As soon as the wound of a cutting is dried it can stimulate new root growth. Does the cutting have sufficient roots? Then the cutting can be placed in a pot with soil. It is best to use fresh potting soil to stimulate root growth. Make sure to not water the first period.