I played "the barn door" in online tournaments and cash games.
This means cards central to the lineup, suited (ideally) and not being afraid to call or bet to the River. 7/8 has probably raked more pots for me than any other two cards. Next would be 9/10, Q/10, J/9, J/7, and the unlikely J/4.
Believe it or not I fold pocket Jacks unless I can see a very cheap flop and I treat AA the same way.
The fewer the players in a hand the more centrist I prefer to be assigning higher value to 9/10 for preflop raising than AA heads up. If you play much poker I am sure you have seen this very typical "bad play" pan out more often than not, especially in dominant position.
One example I can think of was a tournament in which I had been making calls and showing my folds win or loose. The table took note that I was doing this with barn door hands. As I straighted up on an opponents' pocket JJ and busted him calling to the river, he rebought and I got AA the next hand dealt, shoving like a maniac that didn't care, taking advantage of his steaming disposition I busted him twice in two hands, once cracking his pretty pocket pair, and once catching a pretty pocket pair of Aces myself while he called with 8/10 , something similar to what I had just busted him with.
The odds were irrelevant to the psychology because it a[ppeared that I was just being a bully deepstacked on the second hand, where I had already taken the tournament lead having 1/2 the chips in play making loose calls and showing marginal hands, so, I manipulated the odds of a call preflop all-in by appearing to be reckless and getting aces UTG1 after attaining a huge chip advantage playing barn doors. "barn doors" as in "can't hit the broad side of a barn" due to bad aim of "bullets", "rockets", etc...