One of my favourite human beings, lead singer of Talking Heads, and all around creative genius. I'm still a total n00b at typing so help meeeeeee.
My guess is that he's Ni-lead - I see the hypnotic eyes, the lowered eyelids, the zone-outs, etc. His hands seem pretty casual too. I'm not sure about the judging functions, though. If I had to guess I'd say maybe NiFe?
Oh Byrne, I really like him too. Always outside the box, even dabbled with traditional Brazilian rhythms for a while.
I remember trying to type him but I gave up. Def P lead. The last video might be misleading though, I think he is looking at something in his lap, which create a Ni zone out effect.
If he just had more toggling in the first I'd say NeFi. Maybe SeFi?