Players draw and discard while watching for tiles that complete a useful combination. A call claims the opportunity and tells the table what kind of group or action is being made.
Chow



Three consecutive numbered tiles from the same suit. You may claim a Chow only from the player immediately to your left.
Pong



Three identical numbered tiles. A Pong may claim a discard from any player.
Kang




Four identical numbered tiles. A Kang receives a supplement draw from the wall end.
Secret




A concealed Kang declared from your own tiles. In Pinoy Classic, each other player immediately pays 50 chips.
Sagasa




When you draw the fourth copy of a tile in your exposed Pong, you may upgrade it to a Kang. In Pinoy Classic, each other player immediately pays 50 chips.
Rob the Sagasa

If another player’s Sagasa tile legally completes your hand, you may intercept it and win for double the normal result.
Calling well
A legal call is not always the best call.
Exposing a group can move you closer to a complete hand, but it also tells the table what you are building. Before calling, ask whether the tile improves your hand enough to reveal part of your plan.
A claim should make the hand clearer, not simply busier.
Other players will read your exposed tiles and adjust.
Know the follow-up before committing to the call.