I agree, and I'd just add to that: Don't talk about yourself! Don't talk about how you'd play it. Talk instead about the options the player has. Every time you're about to say "I" instead say "he" or "she." And this is really important: Limit the conversation between commentators. It's not chat time for you two. Some interaction is necessary, but too often viewers feel like we're eavesdropping on bull sessions.