That really depends upon what the boy is saying. People talk about all kinds of things and for all kinds of reasons.
no most definitly not he talks like a boy and looks like a boy
Of course she is a girl. Don't you see she talks like a girl?
yes he is definetly a boy because no other girl i know talks like a boy
This question is inappropriate
well i think nights is a girl,because of her eyelashes,and she talks like a girl and she is purple
It means that she likes him, but is not necessarily attracted to him. She could just want to be his friend or she could want more. The only way to know which one is if the boy talks back to the girl.
Maybe if the boy/girl keeps on looking at you. Or maybe the boy/girl gives you stuff or gives you attention. Or the boy/girl talks to you a lot.
Not always. If it is excessive then they probably do like you.
Not necessarily
He may be unsure of himself, or afraid of possible rejection. Maybe he just likes to fantasise about her.
most likely, yes.
it is a boy. It does not mean it is a girl because he likes pink and sounds like a girl!