When making advances or flirting to show your interest to a girl whats the boundary between harassment and normal advancing?
I`m looking for the grey areas, e. g. you are charming but still you are a stranger, but strangers open up to you, and you got this nice guy feel about you. So girls are less likely to want to offend you and not even give you slight hints that they are not open to random people hitting up on them.
But you pick that up from avoiding eye contact with you for short moments, and your brain asks is she not interested or just plainly shy. So what`s my options in this type of situation, how can I tell?