Conversation with Jen this evening:
R: You can cheat at Scissors, Paper, Stone, you know.
J: …
R: I'm quite good at it.
J: …
R: It's all to do with the timing.
J: …
R: As you're counting 1…2…3…, you delay your hand movements ever so slightly, to see what your opponent goes for—then you go for whatever beats them a split-second later.
J: …
R: They usually don't notice.
J: …
R: …What?
J: …
R: WHAT?!!!
J: …WE'VE played Scissors, Paper, Stone.