Aaaand, to cool down this thread in its galloping tracks, here's another link (on this forum, in fact!) that might help a bit:
http://forum.infjs.com/showthread.php?t=2406&highlight=von+hase+faces
It's kinda cool. There are similarities and differences in all of us, though. That's the truth.
Heh, thanks hun.
There is no physical feature that can be attributed to cognitive function type. The notion is in fact ridiculous.
However, there are facial expressions, mannerisms, and other forms of subconscious communication that are tied to the manifestation of cognitive functions and thought process. Dominant function seems to be the most obviously displayed in someone's facial expressions, which is then flavored by their secondary function. In the case of ENTPs, you'd be looking for Ne, flavored by Ti rather than Fi.
Ne domiants tend to have facial expressions that are very alert and focused. They tend to peer and hold their eyes open wider than others. There is often a manic energy about them, even when they are still. They tend to move and speak quickly. Many of the Ne dominants I know have a problem with their mouths not being able to keep up with thier amazingly fast minds and either talk at blurring speeds or consciously force themselves to slow down.
When combined with Ti, Ne takes on a notably more dry demeanor than with Fi. You can usually feel a lack of vibrant emotion coming from ENTPs, though this doesn't mean they are unemotional, just not the unmistakable beacon of emotion that ENFPs tend to be. Very often ENTPs carry an intensely curious or condescending expression. ENTPs are also notoriously contrary, even when they are agreeing with you.
However, in some cases, like Shai Gar, they just seem psychotic, hehe.
