its an interesting concept
players like daniel negreanu you will often see them showing 1 card.....
and he does this to give half the story, and to feed on an image
now i was in an MTT, and i shoved with 12BB 2 times in a row, first was a bluff, 2nd was not a bluff, i showed the 2nd so people didnt think i was just shoving with trash, and by the 3rd time i shoved, think i had AJ, i had so much respect that they wouldnt call (now im glad in a way that they didnt call, because less 60 40 calls the more chance i had of getting up the leaderboard risk free, and id like to think that the occasional show can give you a positive image.
I guess what im trying to say is, we set our own image, make an unusual play if you have to, where you make a rediculous bluff, but play it like you would play a made hand, and even if it doesnt work and you get called down, just go to the river, and if at any time any more money goes in the pot "show your bluff" people who are watching will make a note of this "unusual play" and play back at you more, so when you go back to your normal playing style they dont have a clue and BOOM the trap has been set
its called laying out your table image, make the table believe something that isnt true, but you know its not true and see how they react..... now you gave a little information, and your gaining information from your opponents "namely how they react, do they loosen up, raise bigger etc etc, cus surely this is what you want"