How do I do well in an interview at Puppet?

Come ready to speak to what you've done and accomplished, not how you *think* things should be. Puppet's behavioral interview style isn't about theory or hypotheticals. If you give vague or conceptual answers, interviewers pick up on that and will be pretty persistent about describing your accomplishments. Along with that, just admit when you haven't done a specific thing and either figure out something you've done that's involved comparable skills or let the interviewer move on. Nothing worse than wasting precious interview time because a candidate won't just come and say, "I've never done anything like that."