How to treat three batches in Yunnan?

This is a poker game. There is a poker game in Yunnan called Tuosan Batch. It's just a poker game played by many people. Everyone gives out three pies and then drinks to return the cards in your hand.

Finally, see if the handkerchief in your hand is serial or the same color, so that you can see who is older and who is younger, and then the smallest one is called drinking.