Aisthesis, you've been talking about learning how to play the other guy's cards instead of your own. IMO, floating is one of the simplest ways to do that.
Classic situation. AK raises preflop, 66 calls. Flop misses both of them. AK bets, and 66 folds (set or forget). Why did AK win? Because he was able to play the other guy's cards, not his own. 66 looks down and sees not much, so he folds.
But now 66 is a floater. As a floater, he's refusing to care about his cards, he's playing the other guy's cards. Again AK pfrs, 66 calls, and the board misses them both. But this time 66 calls the flop and AK check/folds the turn. 66 was able to play AK's cards, rather than the other way around. Make the other guy look down and see if he feels like proceeding. Most of the time he won't.
Of course if he's got AA he's proceeding. But if he has AK you can take it away with 66 or QJ or 72 or anything. Not something you can or should try often, because they'll keep firing if you get known for doing this. But as an occasional play, to take down an occasional pot, it should work. Especially if you play live and have the table's respect as an established tight player.
At the tables I play, which is $50 NL online mostly, the situation comes up most often when you know that a guy bets with and without cards but does not know how to checkraise with air. (Nobody at $50 full ring
ever checkraises with air.) This usually comes up when I'm in a blind battle as the BB against an aggressive opponent. SB raises PF which he does with a very wide range, I call with any two. SB fires a bet on the flop hoping for a fold, but I call again with any two. Now SB has a really tough time. Unless he's caught a pair or better he'll usually check/fold. Then I can show my hand and piss him off, and set him up for a stacking when I have a real hand next time.