In Lenore Thomson's theory, the four-letter code "ENFP" stands for a person with:
Extraverted Intuition as their Dominant Function
Introverted Feeling as their Secondary Function
Extraverted Thinking as their Tertiary Function
Introverted Sensation as their Inferior Function
Profiles
Bearing in mind the Classification Mismatches, here are:
Joe Butt's ENFP profile
David Keirsey's ENFP profile
Brenda Muller's ENFP profile
Hirsch and Kummerow's ENFP profile
Hale's ENFP profile