Foley gave some examples, stressing that none was part of his top-secret repertoire. "You could have an indicator, where you touch a spot, and then it's not on unless you lock it in," he said.
And how do you lock in a sign?
"Well, if I give you a sign and put something on, let's say the left wrist is the lock-in," he said. "That means it is on if I touch it. If I put a sign on and I don't go to that left wrist, then it's not on. Then again, I could put no sign on and end up touching my left wrist -- and nothing's on."
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