I know Ji leads are supposed to be rigid being J leads, but I don't quite grasp how Ji is rigid as opposed to Je that's clearer so I would appreciate some explanation here.
She's not actually TiNe, she's an Fi-lead, but the reserved, collected posture stays the same. The way she smiles is very different from a TiNe. Her smile looks almost identical to FiSe Micahel Jackson's. (places like 0:44) She's very probably FiSe.
He's actually got very intensely prevalent Se & Ni simultaneously. He's either a very Ni heavy Se-lead, or an Se-heavy Ni-lead. His inner functions are probably Ti/Fe, and I'd have to side with a very Ni-leavy SeTi if I had to guess, but don't know him well enough to say for sure.
Auburn thank you, I kind of get what you mean with Ji leads, especially after watching some more videos with Ji leads and you're right that there's a different kind of rigidity in body language. More self-contained but perhaps not as fluid as Pi leads.