Any suggestions on how to help him be a better DM without treading on his toes in the process? I've gamed a lot over the years, but I've never been in this situation before-- good or bad, the DMs have always been experienced at least. I've never dealt with a first time DM before. I want his experience to be enjoyable, but he does need a lot of help, too.
(cross-posted to dnd_women.)