[INFP] What skills are we best at than other types?

[chubber]

Really? Only few of them are very social though, the ISFPs and IXFJs are the loudest introverts. But may it have been that you knew some outgoing people who are INFPs?

The I in INFP indicates the attitude of the dominant function, e.g. Introverted Feeling supported by Extraverted iNtuition, that's if you are using it and if you are using it the right way. The P is derived from the first Extraverted function, which in your alleged case is iNtuition, which happens to be a Perceiving function.

You can be an introvert, yet for example ENFJ. The E doesn't work the way you seem to think it works.

When the INFP gets angry, they will be a loud idiot ESTJ (and ESTJs aren't loud or idiots), focusing so much on facts for the wrong reasons. Repeating themselves etc.