Well I'm pretty sure it was easy with my ESFJ ex because he had an Ne tertiary temptation pretty badly just like I am with my Te, sometimes he overestimated his abilities with it, and he could come over-reliant on it, getting in an Fe/Ne loop, and let me tell you people in Fe/Ne loops are kinda scary.
I liked him much better when he balanced the Fe/Ne with Si, he was much more sane, but I think Ne was a real bonding point for us, and probably why we could have four hour conversations, excitedly feeding off each others ideas and comments, bantering back and forth, blah blah blah...sometimes to the point of talking over each other. It drove his mother c-r-a-z-y. I think it also started arguments between us sometimes though, that's the only bad thing.
JTG1984 has a lot of Ne for an ISFJ which is why I think there were people who actually believed he was ENTP trolling as ISFJ, et al.
I think someone with a lot of Ne (Ne dom/aux, like NPs) are the people who have the easiest time bringing it out, just like SJs can bring out my Si, I swear. They're like bonding points. It's like being balanced by a person who understands a hidden part of you.
I don't know how I do it, anyway, I don't have a method. I'm just saying it does happen.