Though we all know among all NFs ENFP has the uncanny ability to scan/read/empathize people in general, I'm sure there are other social norms which might have set them apart from other NFs.
I once remembered an ENFP told me about one of his social rule: "Tried your best not to show any frustration and disappointment in people. Whenever you are starting to feel the negative energy, try to rationalize it since your projection could be one sided and that's isn't fair."
Another ENFP claimed she tend to think "1000 times first before offering any criticism, even if it's constructive."
What about other ENFPs? What's your golden rule of socialization (especially when encountering conflicts) to keep the coolness in you?