Aeoniums can be pruned in the following ways: 1. Removal of dead, damaged or diseased leaves: This helps to promote healthy growth. 2. Pinching off the tips: If the plant starts to grow too tall or leggy, pinching off the tips can encourage branching and a more compact growth habit. 3. Cutting back the stems: To promote bushier growth, cut back the stems to just above a leaf node. New growth will emerge from the node. 4. Propagating through stem cuttings: If you want to propagate your Aeonium, you can take stem cuttings and root them in soil or water. It's important to note that pruning should be done with clean, sharp tools to prevent damage to the plant. Additionally, Aeoniums should be pruned when they are actively growing in the spring or summer.