Certified GKH Gardening Expert
This article should help you: https://www.gardeningknowhow.com/ornamental/trees/palms-trees/propagate-palm-pups.htm
In the spring, gently cut the shoots away from the mother plant, making sure to take some root with it. Sometimes it helps to dig out around the pup/shoot while you are doing this so you get a better idea of how and where everything is. Then, you can pot them up and keep them well watered. Once you see it putting out growth, it can be transplanted into the ground.