I just remove the last two or three leafs and the nodes left where the leafs were removed will root . Just stick them in water to root.
Sometimes visuals help…
Cutting from plant
Remove leaves at the leaf node. The leaf nodes are where the cutting will grow roots.
Cut the tips off remaining leaves so more energy with go to rooting.
Place nodes in water . Keep water clean .
Coleus below is from root cuttings last fall.