There's a book by Daniel Goleman called "Social Intelligence." His research shows how our brain waves sync during social interactions.

Not all of us "sync" that well with others.

Oh yes definitely so. I feel that way a lot too because social anxiety lol

It's more obvious when someone with no self-confidence tries to pretend they do. Just be yourself and learn from it.

Depends. Some people know right away, others can't really read emotions well.

Yes, they can. I suggest u fake confidence until u feel it.

Yes

Yes like on here,you ask the same questions almost every day,so that right there tells you are.