The game is about information, the correct interpretation of the available information is the source of the poker money won.
When you show your cards without being paid, you are giving away money, sometimes when called I muck my cards face down and hope the villain won’t ask the dealer to flip them over. Even letting people see my bluff cards is information I try to hide.
Leave the ego and meta game one gets from showing bluffs to the young guns play like an pro and never show your cards.