well off the bat i'm going with ENTP because of your username
and the way you've phrased your question.
anyway, yes, it's slightly more nuanced than just emotion, but an ENFP will weigh things for importance/significance/value.
the second function is sometimes called the "Supportive Parent", and for both ENxPs it will (theoretically) keep Ne in check. so an ENTP will stay oriented to the things that matter logically, while the ENFP will stay oriented to the things that matter value-wise, even though Ne tends to want to take us in every direction.
basically the way i see this manifesting is that ENTPs tend to apply their Ne to technical problems - innovation and invention, often areas like hard sciences. they look at how things fit together, and often the Ti comes across in razor-sharp wit, lol. ENTPs are usually really witty and have an "edge" to their humor. ENFPs tend to apply their Ne to people problems - we're good at motivating other people, and we tend to look at big-picture ideals. we're "softer" in some ways - more openly bubbly/friendly, but ENTPs can definitely have Fe charm.