No Opinion Needed
Three days of not offering an opinion unless someone asks for it.
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Why this one
Reveals how much of your talking is contribution and how much is reflex.
The rule
Three days of not offering an opinion unless someone asks for it. For 3 days. That is the whole thing; there is nothing to sign up for and nobody is tracking you.
Post the card on day one so somebody knows you started. That
is the only accountability mechanism that reliably works and it is free.