Set the dragon tree on its side for several days. This will cause one side of the tree to grow flat while allowing the other side to develop bends.
Cut back the dragon tree's stems to help the plant develop branches.
Place the dragon tree in a bright window. Allow only one side of the dragon tree to receive light. This forces it to bend toward the light, causing a bent and twisted trunk.
Wrap thin bonsai wire around the flexible stems to train them into any desired shape. After several weeks, remove the wire.