In my experience:

Ne-ILE has a harder time explaining things concisely - says umm, ahh etc. more.
Ti-ILE is more level-headed, less abstract in his explanations. Doesn't jump as much between things.
Ne-ILE is 'friendlier' in my experience, Ti-ILE is more like a LII-Ne, a bit closed off and more observing. Ne-ILE is very happy to talk to people most of the time IME.
Ti-ILE is a bit more judgmental in social situations. Has less tolerance for others.

This is the same with Ne/Fi-IEE's i think.

Ti-ILE's can resemble LII-Ne's.