Why is that person hanging out in that room? Was it to accomplish a task, or were they pretending to while sabotaging something? These questions and more will pop up as you run through the halls, until someone calls an emergency meeting to accuse someone of acting "sus" (game lingo for "suspicious") or because they've found a body. At that point, everyone can chat to explain where they were and who they think did it. If you have an alibi (or are a better liar who can divert attention from yourself), you may stick around for the next round; if not, you'll get ejected into space or tossed into lava.