When in a creative session, do not be that guy who thinks they're always right. You know, the one who interrupts everyone else's ideas, corrects their grammar in their sleep, and generally makes everyone else feel like they're not creative, but rather a mere mortal.
Instead, be like that one friend who's always right, but never tells anyone. Just quietly nod along, make a mental note, and then go create your own masterpiece while everyone else is still stuck on theirs.