Hello brother
At least I think it's not a good strategy to give information to your rivals about your game.
If you show a lantern, you'll hardly be able to bluff again, and making a good bluff isn't easy.
If you show a monstrous hand or a trio, when you have another hand as a villain it will be hard for him to pay if he wants to see a light hand for him but thinks he wins.
I don't criticize those who teach cards, everyone plays and interprets the game however they want.
The manuals don't say anything about it, but if they say it's good to show cards, at least it would go against the manual and it wouldn't.
a hug from
argentina


Carlos