The latest installment of Save My Game, DM Judgement, has some decent advice on the title topic (nitpicky players) — but the real gem is this:

I developed a system of small name cards that I would hold in my hand as I talked with the class. I cycled through the deck as I asked questions to make sure that I kept everyone engaged, but I had to pay attention and make myself do it.

Not only is this yet another use for index cards, but it sounds like an excellent way to make sure that you’re not ignoring your quieter players in favor of the chattier ones. Simple, intuitive and potentially quite useful.