I talk about the pace of the game and not to rush it to get to the "good parts."

I talk about how major mysteries should be planned and developed in campaigns.

I talk about how to handle a large game collection.

I talk about modularity and pre-made packages in RPGs.

I talk about my views on metagaming.

I talk about what to allow and how to handle other races and creatures as player characters.

I talk about having the PCs be something like tax collectors or insurance adjusters.

I talk about RPG rulesets and GMs who discourage players from playing certain types of characters.

I talk about how to work out adventures by digging into RPG sandboxes.

I talk about motivating myself to get the adventure out of my head and onto the paper.