Ah, yes, we INFPs. We don't know how to react in some situations, it might even be just nerves! I'll give you a personal example: I once asked my romantic interest for some help in a course that we both had. I'm not that great at university level biology, but since that was his major..

When I asked him he said "sure, let's go to the last lab table." and I followed suit once everyone left. I was so nervous and shy that it was just us, that I ended up sitting 2-3 chairs away. He said "...you can move the chair over closer if you want" ...

lol, I didn't know how to react, lol. My mind was split: If I don't move, will he take it as a rejection or something, or what happens if I do...? We INFPs are constantly thinking like that too... when we're not paralyzed by nerves, that is. lol