If you're narrator or taciturn, explain what it means for you

It has obviously an effect on language, on the way we express in speaking, but I'm wondering if it's more than that.
I often can't find the right words and I need quite a bit of time to phrase my sentences.

Narrator
INTP
ENTJ
ENFP
INFJ
ESFJ
ISFP
ESTP
ISTJ

Taciturn
INTJ
ENTP
ENFJ
INFP
ESFP
ISFJ
ESTJ
ISTP