Sometimes when potential clients send me long emails I turn those emails into PDFs (by printing them to PDF), then load them into Notability with very wide margins, and write my notes in the margins, with screenshots, captions, and diagrams, and send them back. It’s a way to let people know that I’m really listening and trying to help them, not just talking. They see handwriting and know I’m committed. It’s the opposite of robotic interaction.