The graphics posted depict tying a Hangman's Noose. This is the kind found on Chris Reeve knives.
It is not, however, the most secure type of knot if that is the look you want -- unless the purpose is to be able to slide the knot.
The Hangman's Noose shown can of course have the loop, which goes through the lanyard hole, adjusted. If this is not necessary, then a Multiple Overhand Knot is better. It looks almost exactly the same, but is tied differently and cannot work itself loose the way that last little tuck of a Hangman's Noose can. I don't remember if the CRKs have significant lengths of free cord below their knots; if they don't, then the purpose of a Hangman's Noose is defeated and you might as well use the M.O.K. since it is sturdier.
Instructions for tying the Multiple Overhand Knot are found all over in a Google search. (Sorry, I don't have a link at hand.)