Friends: Rise of the Fallen

The Guy on the left, Jimbo, is SiTe and The Guy on the right, Markison is FeNi or FeSi.

Yeah, my brother has me confused in that exact same manner, he definitely seems to have the Fi/Te, most obviously, and his energy is directed inward, but the eyes at times could be said to be Si/Ne or Se/Ni. Hmm...thus, I'm incapable of typing my brother without being bias, but your friend seemed, to me, to be SiTe, not because of rigidity in posture, which I tend to miss completely, as I have not had enough practice with spotting anything other than Pe-buoyancy on rare occasions, but because of his energy, eye displacement (inside the socket, rather than protruding and "hypnotic"), and eye movement that, in this video, seem very Si/Ne to me (steady and concentrated, yet still glossing over objects).

{Si/Ne Exploration timestamp: 7:39 - 7:48} Lol, Mark looks totally disinterested in what he's saying, he still is probably processing it or listening, but boy does he seem like he doesn't want to.