4 Nin Uchi Mahjong

Reading people

Spotting the habit before the move. Spend a whole round just watching your opponent. Do not try to win it. Name their habit.

Judging risk

When to push, when to bank it. Play one session all-in: every risk, every shortcut. Then one session all-safe. Compare scores.

Winning and losing well

Good game. Run it back. After every loss, say 'good game' and mean it. Then ask for a rematch.