Umm.. Lines and pictures yo!!!
Like err, really Sharply drawn X's, really well drawn squares... sharp corners, large triangles, hearts, etc.
This technique probably will require more physical demand than most freehanding... Of course there are ways to adapt but I will leave that to you who needs to adapt... this is for everyone else!
Skill points required :
To effectively use lines... in no particular order...
1) Accuracy
To retrace lines really really fast to produce a sense of permanence in the structure, and of course to produce it without looking sloppy!
2) Muscle Memory
Shapes as complex as a square have to be produced over and over and over to get it sharp and look nice while maintaining speed.
3) Speed
Gotta go fast enough that it leaves trails in the sober mind. This is pretty damn fast and pretty damn exhausting... but what better way to get RIPPED than freehanding like a maniac?!?!?!
4) Fluidity
Don't forget you gotta drop these moves in while you're still in the groove. If you are repeating a structure a few times you can probably just choose any break point to leave it and go into other freehand techniques. Nothing you aren't used to right?
5) Repetition
Tracing over the same shape mad times mad fast will make it look like its "REALLY THERE". What do you mean its too hard? Wuss!!! FASTER HARDER STRONGER FASTER.












