Believe me whan I say this: I know this pain.Hmmm, our "I'll keep whatever I'm doing/thinking/feeling to myself so as not to impinge upon your personal harmony. I wouldnt want to violate your space or intrude upon your feelings." That can be respectful, or pussy-footing depending.
I think a lot of us INFP's [myself included] need to physically exercise more.
Our ability to have great insights and understandings, but then not share them.
Our ability to have deep and meaningful feelings but then not express them because they seem too mushy or sentimental.
We can definitely have moments of timidity.
That we have these very interesting deep creative personalities, but often aren't willing to share/express them in the open.
How our openness and caring can leave us prey to those with psychiatric/mental problems or to those with FAR less moral scruples.
That we alternate between being very calm and docile, very creative or even kooky, and hiding those so as to "socially fit in".
That we have great ideas for how things could be, but lack the organization and/or decisiveness to bring those ideas into creation/existence.
That we are so deep in our thoughts/feelings/reflections that other people don't want to or won't let us share those with them.
That we are these soft, sweet, easy-going fluffy bunnies when sometimes our soft-bunny-selves just need to bare our fangs and show our claws!
That people love us as we are but we nonetheless feel that we need to hide or adapt how we act/show-ourselves in the real/social world.
INFP's, the most interesting [and caring!] people that you will never actually bother to talk to because you can't see/notice how interesting and caring we are.