At my Skywest interview, I had two or three guys look through my logbook. Only one asked me questions on some flights. Specifically, I remember him asking me about 121 duty regs, and then saying "So what happened here?" and pointing at a day I had logged 8.2 hours.
My response: "Well, as I said earlier, I've only ever done Part 91 flying, so that's completely legal as duty regs don't apply. It was just a long day with bad winds."
His response: "Oh. Right." *flip...flip...*
To be honest, I was actually kind of surprised he caught even that. I had just expected them to look at the last page, flip to a few random pages to make sure nothing glaringly obvious was wrong, and be done with it.