Find a quiet place to copy. Copying the Heart Sutra is a concentrated activity, which should be carried out in a quiet environment so that you can devote yourself wholeheartedly to it.
Make sure that the copied materials are correct. Before copying the Heart Sutra, make sure that the materials you have are correct and pay attention to the neatness of the handwriting.
Go back first. Before copying the Heart Sutra, you should turn around and thank the predecessors of Buddha and Bodhisattva for their merits. The way to return can be simply chanting "worship Buddha and Bodhisattva, please ask Guanyin Bodhisattva, may all beings be safe and happy".
Focus on replication. In the process of copying, you should concentrate on copying, and don't let outside interference affect your practice.
Go home. It's time to go back after copying the Heart Sutra.