If I could only cram one tip into the soft, squeaky skull of a new TTRPG player - whether a player OR GM - it'd be this: Try and be a fan of the other players' characters. Admittedly, this would be kind of a cheat on my part, since this is a sort of umbrella tip that holds a dozen other tips. Click play on this special slice of Fan Club Content For Fans Only and you'll see what I mean.