Code Geass' first season has Lelouch pull off one against Jeremiah. "Also, Orange". Specifically, he spoke what appeared to be a codeword to an enemy combatant on live TV, and then used Mind Control to make him release him; it doesn't mean anything but the Britannians don't know that and, since they don't know about the mind control, devote precious counter-intelligence resources to finding it out. The fact that Jeremiah got demoted for unwillingly helping Lelouch escape due to the latter's Compelling Voice (again, the Britannians don't know about that so they thought it was from blackmail related to the "codeword") was just a nice bonus.
This is L's tactic in Death Note, to apply the pressure of Paranoia Fuel and watch for a Revealing Cover-Up. It does work, but not as successfully as he'd hoped; he counts the small victories until he has to concede defeat.
Guu in Haré+Guu regularly uses this tactic to torment Haré; having established how far she is willing to go, including distorting reality, to mess with him, she can often get the same result by doing absolutely nothing, allowing Haré to drive himself crazy wondering what she might do.
Jotaro defeats Daniel D'Arby in poker in JoJo's Bizarre Adventure in this way: By remaining absolutely calm and looking supremely confident without even so much as looking at which cards are in his hand, Jotaro was able to freak D'Arby out so much that D'Arby conceded, his hair turning white in the process, despite D'Arby having four kings in his hand. When Avdol requests to see Jotaro's hand, Avdol is horrified to see that it's completely useless. Jotaro admits that he probably would've been a lot less calm had he actually bothered to look.
To compound D'Arby's paranoia, Jotaro uses his Stand to fetch things for him too fast for D'Arby to notice, bluffing him into thinking that he'd switched the cards when he wasn't looking. Jotaro then had the gall to raise by betting the souls (it was that kind of game) of their ally Kakyoin and his own mother, the latter of whom they had set out on the journey to save. Jotaro reminds D'Arby that he has to match his bet, and demands that D'Arby must tell them what the power of DIO's Stand is. And the cost of betraying DIO is instant death.
Liar Game: Akiyama kept 24-hour surveillance on Nao's opponent to mess up his judgements. He did absolutely nothing else to the man until an hour before collection time...
