Many people complain, when they first try Are You the Traitor?, that they don't know where to start; a lot of people will just sit there and think about it, without saying anything, or will accidentally reveal their role quickly by the questions they ask or fail to ask.
What are some good opening questions or strategies for getting the ball rolling, if you're a guard, traitor, or keyholder? While you have different goals in all of those cases, you're trying not to reveal that, so your opening questions or discussion should probably be the same regardless of which role you take. The same question could be asked for the wizards, but for the purpose of this question, lets restrict it to the Adventurers.
If you're an Adventurer, what are good ways to start the game and get the ball rolling?