as a DM, asking and receive constructive feedback from your players and
as a player, provide positive and/or constructive feedback to your DM.That said, at the end of chapter two of a large homebrew campaign setting I've been running since 2009, I sent an email to each of my players:
- thanking them for 18 crazy nights,
- remembering some of my favorite moments with them and their PC's in the last campaign chapter,
- asking them some after-campaign story questions about what their character does with the rest of his/her life,
Here's the text each player received in an email: