How Is Finding Dominants Empirical?

Ways to visually identify order of function pairings:

P-leads (any S or N function) Move around a lot. Their movements of the body are lead by their eyes; their eyes seem to be more independent from the rest of the face.

Pi-leads (Si/Ni): Have slow, viscous movements. Eyes drift to the sides a lot. Slow lean-backs occur.

Pe-leads (Se/Ne): Have a faster pace of moving around. Eyes always scanning the environment for new information.

J-leads (any T or F function): Rigid posture, use hands gestures often.

Ji-leads (Ti/Fi): Look down frequently.

Je-leads (Te/Fe): Head movements as if they are "pushing" their point to you. Strong articulation.

Introverted vs Extroverted: Energy recedes inward, and generally appears lower vs seeming to have more energy ready to use/being used.

Well, words can only describe what I'm trying to say to a certain extent. To address your first question, I think that if an Ne-lead was very tired they would look like a Ji-lead. The reason that I think this is because Pe-leads have a more energized momentum that they move with, and if the energy is gone they will keep a rigid posture. They will look like a Ji-lead over a Je-lead because their articulation is weaker and their speech will be much less extroverted, especially if they are tired. Depending on how tired the person is, they might still do a lot of exploration with their eyes and be lead with their eyes. If they are like realllllllllyyyyyyy tired, then I don't know if they'd even give off enough consistent signals to type off. A Si-lead would have a more fluid motion in their body movements and their articulation would be stronger than that of an Ne-lead. Second question regarding J-leads: No. Ji-leads are introverted and Je-leads are extroverted. You will really be able to see the difference in energy of the two types. Additionally, the Ji-lead will have weaker articulation and do more exploration (Pe) than the Je-lead. When a Je-lead is talking, they are doing it in a very extroverted manner, like they are talking directly to you very clearly. A Ji-lead would look more like they're thinking while talking. Sorry for any confusion on the signals, you should probably look at the video series if you want to see what I'm talking about in motion.

The signals themselves can be pretty distinct if you're good at VR. There is no absolute distinction really because VR itself isn't completely distinct.