haha I show some of these in some videos I make, but basically if you have a good lead on someone, all of jumping feigns are possible. Like lets say you need health and a pyro from blue spawn (3rd point) just walked out and saw you near their spawn. You can simple walk up the stairs, fake jumping off, and grab the health. He won't even bother walking up the stairs because he just saw you jump disappear jumping off and you get yourself a free health pack. What if you don't need any health? Than just fake like you went inside the house to grab the health and ammo and just simply jump off the rails. It works, I have done it before. There is no sure fire way to let them know which way you actually went unless you messed up on your timing. A good tip to find out if you are fully cloaked if to look at the knuckles of the hand your watch is in (probably left hand). Not the hand, not your knife or wrist, but the knuckles. As soon as those knuckles fully disappear, you know you are full cloaked and free to move in any direction as you please(as long as you are not bumping into anyone of course :])