Having a hidden idol in Survivor. DON'T TELL ANYONE. Why do idiots always like to tell the whole cast they have POV? 1 that makes you an "active" threat. 2 EVERYONE begs you on who to use it on and don't use it ect. and its SO annoying. The one time I won POV in crookies NO ONE knew it was me because they all overspammed and I was on casually so they all thought someone else was lying and I had POV all along and saved one nominee and ONLY told that nominee knowing they'd have my back later on.
Plus when you're nommed and have POV and you don't tell anyone and no one thinks you have it and you make alliances and stuff to have 0's and 1's you can tell who lied to you at D/C which is a huge advantage.