FDG I agree that Teemu Selanne is T subtype, and think that Christian Bale could be N sub. Selanne also has that detached amused look.

But yeah I think the vibe is an important distinction to look for. With T subs their F side will be much more hidden and have to be pulled out by say an ISFp-F sub. This is why they have that more detached amused look, and sometimes the "You gotta be kidding me" look, and sometimes the "That's pretty funny" (amused) look.

N subs as Slava has mentioned used their Ne more actively. Thus they appear more distant and their F-side seems more on the surface and visible, thus the "look at how charming I am" look, which can come off as almost being an ethical type.

Here's another one of Christian Bale who I think gives off that N-sub vibe: