Understand how to use and dish out Knockbacks.
Straight Sneaking
Difficulity
Very Easy
Speed
1.6bps
Sneaking in Minecraft stops or prevents players from walking over the edge. Especially useful when you are on a floating island and that extra step will get you terminated from the game. (By the way, sneaking prior to Version 1.3.1 of Minecraft would let you fall over the edge).
Straight Sneaking is a combination of sneaking whilst placing blocks in a straight line whilst looking backwards.
Straight Sneaking is a combination of sneaking whilst placing blocks in a straight line whilst looking backwards.
How to do Straight Sneaking

Start by facing your back toward the edge/direction in which you want to build.

Crouch down by using the shift key and keep holding it down.

Move backwads over the block until you cannot move any more.

Look down and position the little + onto the side of the block (close to the middle) and place a new block.

With your first block placed you can now safley keep moving backwards in the crouch position and placing blocks. The end result will have you moving backwards, placing blocks as you go, all from the crouch position. This is by far the easiest, fail safe method as you have no way to fall off into the void.
Diagonal Sneaking

Moving Sideways (strafing) using this method is in fact faster than moving straight backwards so be sure to give it a try as well.
Follow Straight Bridging but at a 45° by using (S)+(D).
Follow Straight Bridging but at a 45° by using (S)+(D).