What are Janis Elspas's signature techniques for hosting murder mystery events?

Based on the available content, it seems that Janis Elspas enjoys attending murder mystery events, such as the one hosted by HBO for the show "Big Little Lies". She appreciated the ambiance created by the pretty candles and lemon centerpiece. However, the specific techniques she uses when hosting such events aren't detailed in the content I have.

Would you like to know more about her experiences attending these events or are you interested in general tips for hosting a murder mystery event?