1

Fold your hand.

2

Discard first dora tile you get.

3

Break all pon sets.

4

Break all chi sets.

5

Discard all honor tiles, keep terminals.

6

Discard all terminals, keep honor tiles.

7

Discard all terminals and honor tiles.

8

Keep all honor and terminal tiles.

9

Make all possible chi calls.

10

Make all possible pon calls.

11

Make all possible chi and pon calls.

12

Keep your hand closed, don't call riichi.

13

Keep your hand closed, call riichi, but only go for tsumo win.

14

Keep your hand closed, call riichi, but only go for ron win.

15

Keep your hand closed, call riichi, go for any type of win.

16

Open your hand, go for any victory that is not tanyo.

17

Open your hand, go for tanyo.

18

If someone opens his hand - keep your hand closed till the end of round.

19

If someone opens his hand - open your hand too.

20

Go for yakuman hand.