I talk about how groups usually have natural leaders and how it's okay to be the supporting PC.

I talk about making sure everyone (including the GM) has fun by not letting a player or GM ruin it.

I talk about how to fix things in your campaign, from adjusting history to retconning sessions.

I talk about thinking up adventures like a B-Movie producer.

I talk about an alternate way to use a map without figures or tokens.

I talk and muse on how simple or codified you need your RPG rules to be.

I talk about Basic D&D's Race-As-Class and how you could modify it.

I talk about illnesses and other things that would put characters under the weather.

I talk about how to relax behind the screen and not to stress over stuff.

I talk about loose ends at the end of a session/adventure/campaign and how /when to use them.