callsAfter your second exposure the table can often name your exact hand. Plan your discards for that moment before you make it.

callsDo not call to feel busy. Every exposure spends flexibility you cannot buy back.

callsMahjong may be claimed on any completing discard from any seat, and it beats everything. Never sit politely on a winning tile.

callsTies between a call and the racked draw go to the caller. Genuine ties only; racing to rack is bad form and bad law.

callsMisnaming a discard is cheap to fix and ruinous to ignore: a mahjong declared on the wrong name costs the misnamer four times the hand.