Post any psychological games you engage in to win at poker. I'll start:
- One of my favorites to get an opponent unsettled is the "seemingly random amounts of time and money" tactic. I usually do this when I have a poor hand because it gives the impression you really have a lot invested in whatever you're holding, when in actuality you're just trying to get him to get nervous and fold.
This technique almost always is pre-planned and has little to do with my cards, or whatever comes out on the board. I also limit this to when I'm against only one other player.
On the flop I'll wait a long time - maybe until the timer starts letting me know I have 20 seconds to act. Then I'll min-bet, or if the pot is a little larger, bet twice the min (so still a small amount, less than 1/2 the pot). Combined with the time it took me to bet, this is intended to signal I have a hand I really had to think about, maybe something i'm slowplaying or a really strong draw. At this point I am usually called just because the bet is so small.
On the turn I will do one of two things, either check as quickly as possible (so quickly it seems like I wasn't even waiting for the next card)... or I'll wait a long time again and then overbet the pot by 50% or so. The latter usually gets a fold. The former might get a check behind, in which case I now go for a big overbet on the river; or if they bet the turn, I swiftly check-raise by a really unreasonable amount. Like tripling their bet.
All this takes a lot of concentration and sometimes goes badly awry, but very often they sit and sweat it out with their one pair or whatever, and then just let it go because they can't figure out what the hell I'm doing.
- Always fun tactic in a heads-up pot is to tell people specifics about your hand. If I'm only going to do this once, I always tell the truth: "there's that heart I needed" or "just paired my 9!" or whatever. It's funny when you bet right after saying something like that, how often they will call just to see if you're lying. If I'm doing this repeatedly, I'll try to alternate between telling the truth and telling blatant lies. The best use of this tactic is telling your opponent when you flop a monster - playing weird gapped cards and flopping a straight, for example, and then you say "thank god I played this 79o!" They may well call to the river convinced that you have almost ANYTHING except 79o.
- A variant on the above for live games only. If you tell them what you hold, then flip one card over just to "prove it." In one home game, I held 75o (big blind special) and the 7 was a club. I told the guy on the flop that I held 75o and had paired my 7. When the turn brought a third club I then flipped over my 7 (a club) and said "see? just a pair of 7s." He checked his top two pair all the way down, absolutely paranoid I had another club and was lying to him. If I hadn't shown him what I showed him, I have no doubt he would have bet on the turn and river despite the clubs out there. In this case it didn't make me any money (he had the winning hand and I didn't try to bluff him out) but I have found lots of good uses for this. On that hand, I just used it to get under his skin.
- This one is VERY specific, but definitely has its applications on occasion. If you take a bad beat in an online game, one of those improbable "guy cracked your TPTK by hanging on with 93o and hit two pair on the river" deals, bitch about it in the chat box. Keep griping through the next few hands. Then if you are dealt a good starting hand (JJ, QQ, KK, AA, even AK or AQ) within that orbit, push all in. This is read as tilt every time and you're pretty likely to get called by some guy with A9 or something. Often the call comes from the maniac who put the first bad beat on you, and it's a good way to get your money back off that bad beat. Just make sure you're not really tilting and your starting hand is actually as good as it looks. Also - it helps a lot if you are somewhat short-stacked. So don't replenish your stack immediately after the bad beat.